This is the only leg developer attachment I have owned, so bear that in mind for my review. It's fine. It gets the job done. The resistance curve is obviously all over the place, but that's a feature of all leg developers like this (I do want to try some cable attachment hacks at some point). It's super stable on the bench, although it feels janky that you have to raise the bench, insert the attachment and then drop it to the ground -- between two weight bench settings. That said, it's solid. I get a fair amount of use out of this, and it's well built.

Got this as an upgrade from a basic metal trap bar. Done of the welds are a bit messy, but it's really solid. I like that the weight horns rotate, makes it really easy to roll around. One minor gripe is that the opening is quite small and as a larger dude sometimes I bounce off the sides when lunging or similar.

I love this attachment. The shape of the handles makes them each to grip without smooshing your little finger during tri pushdowns, and the pulley runs really smoothly and helps balance it the forces between arms.

I found one single Jackson plate for a reasonable price. It was painted green and extremely rusty. I got it looking nice again, but the reality is it's a decoration more than anything else, I'm never going to lift an unpaired 35. That said, if anybody has its partner anywhere for a reasonable price, I'm all ears...

Completely functional situp attachment. Inexpensive. I actually mainly use this to trap my heels for (failing at) Nordic curls, it doesn't work great for that but it's the best I have, and I'm not going to criticize IM for my personal misuse of this attachment.

Solid preacher attachment, gets quote a lot of use and I feel good that it'll outlast me. The only thing I would like to add is height adjustment. I'm 5' 9", and tend to have to sit on a pad to lift myself high enough that the pads don't dig into my shoulder.

I was initially of two minds about buying such an expensive piece of 3d printed equipment, but pulled the trigger and am glad I did. I really, really love the trakhandles, but also really, really hate the feel of the sticky river handles they come with. The 3d printed knurling is pretty passive, but these are such an upgrade that I don't care.

My first commercial gym experience was at a gym with the urethane coated version of these. I hated them at the time (and maybe still do), but I decided to go find the bare iron versions for some of my gym's change plates, just for the nostalgia. Never getting the 45s though, these things will ruin a deadlift.