I recently bought an Aero-Swing speed trainer after wanting to get my swing speed back up to where it was before I quit playing golf about 12 years ago. I considered those 3 Speed Stick devices and the Orange Whip thing as well as others, but this was cheap and it had some endorsements from some long drive competitors, so I bought it.
After buying it, I went to their site for any training advice I could find, and downloaded their excel file with their recommended workout. It recommends a workout based on your driving distance/club head speed. *the only spreadsheet that was downloadable for me in excel format was for the workout for the slowest swing speed, which irritated me to no end. That kind of lack of attention to details always makes me think the product is just as shoddy.
Anyway, the website suggested I need 2 of these Aero-swings (they look like round plastic cheese graters), so I reluctantly bought another. I did one workout before the 2nd one arrived and really liked it, which is way I ponied up for a 2nd one. What won me over about this device is that it's heavy enough that it forces you to be efficient with your swing path, which helps me groove a better swing. And it wasn't so heavy that I didn't wrench my back like I have in the past swinging a weighted club.
I've now done about about 5 or 6 workouts now with the Aero-swing (using both of them on my driver) and have picked up 11 mph of swing speed. That is more than I expected I would have gotten, or at least that it would have taken me a year or so to get to, not something I would get to in just a week. I started at 100 mph with my driver (a TM clone with a shaft cut 1 inch shorter than standard) and hit 111 mph today. I've gotten the club with both Aero-swing devices on up to 86 mph, which I would have said was impossible when I first started swinging it. I didn't think getting over 80 mph was going to be possible with those things on. At 111 mph, I'm now at the maximum speed I had when I was playing golf regularly about 12 years ago, so I'm pretty happy. My goal is to get to over 120 mph. My goal is to get there within 6 months.
Some Pro's and Con's about the training aid.
Pro's: 1) It's cheap. I didn't want to spend $200 on what looked like weighted golf club shafts with a grip. At under $40, I wasn't worried about blowing my money if this, like most golf aids I've ever bought, turned out to be worthless. Had I known I'd need 2 probably would have changed the calculus, though. Good thing I didn't find that out until after I had one and liked it already.
2) You can hit balls with it. Normally I like training aids I can hit balls with, but to be honest, I haven't done that with this aid yet. I haven't had much of a chance to do that, nor have I seen the point. Hitting balls with an 80 mph swing speed won't teach me anything. So maybe this is a Pro for some people and not one for others. I'll probably end up hitting balls with it at some point, but not in any rush at this point.
3) Easy to install. Just slip it on using the plastic piece, the rubber bushing, and zip tie and you're ready to swing. I keep mine permanently on a driver, but you can also take them off fairly quickly if you like.
4) Resistance in the right place. I think this is one of, if not the strongest, Pro of this aid. You get the most resistance as the club comes into the hitting area but lightens up after the release, so it doesn't jerk you around violently as you try to stop the club. That's my concern with trying to swing heavy objects. I don't want to wrench my back swinging a heavy weighted club like that Momentus I had back in the day. Pulled muscles aren't fun.
Now for the Con's. 1) Website support. You can't download the different workout protocols for different speeds in an editable Excel file, only the one for the slowest speeds. The rest saved as PDF's and not spreadsheets. It was a pain in the ass to manually change the workouts by hand in excel so you have the correct one. There's 4 different workouts I think. Such an easy fix too. I hope the company fixes this nonsense.
2) Two Aero-swings don't fit on a single driver shaft properly. I had to get my dremel tool out and alter the plastic piece that fits over the training aid to make it fit properly. My driver shaft was too thick at that point for what they had designed. If they are going to recommend 2 of these devices, they should provide a second plastic piece with a bigger center hole so it accommodates a wider shaft. You shouldn't have to alter the damn piece yourself. Again, this is an easy fix. Lack of attention to detail like this is so irritating. It can ruin an otherwise great product.
3) The workout protocol itself. The workout is basically this: swing the heavy club first, then lighter club (regular driver), ending with lightest (driver held upside down so you're just swinging the shaft.) Pretty simple and effective. However, swinging my driver upside own was uncomfortable and downright painful if it turned in my fingers at high speeds. You're probably better off swinging just a shaft or alignment stick if you have one. I gave up on even doing this part after 2 workouts since I couldn't find the right way to hold it consistently, and I can't say I've missed it at all. Just swinging the heavy and regular club got me the most gains, but maybe there's benefit to swinging the light object. If I get an alignment stick or empty shaft, I may add it back to the workout, but for now I'll dump this portion of the protocol.
4) Takes up a club if you keep it attached like I do. Since I'm too lazy to take it apart after use, I keep it on a spare driver permanently. If you don't have a spare driver, taking both devices off and putting them back on multiple times during a workout can be cumbersome and time consuming, especially if you use 2 like I do. It's also bulky if you carry that club in your bag. But if you have spare drivers and don't carry the one with the Aero-swing devices attached in your bag, there's nothing to complain about here.
I'd love to see a test from mygolfspy for these types of training aids since to see which one delivers the best results. So far I highly recommend this aid as it's gotten me 11 mph of club-head speed according to my PRGR swing speed radar in the short time I've used it. I'll update this at the end of 6 weeks when my training protocol ends.