They were nearly impossible to close on any sleeve (e.g., oly, specialty, etc.). Not sure if I got a bad batch but I ended throwing mine away.

I spent ages searching for a leg press/hack squat combo that wasn't too wide. My search landed me here. I really like this unit with a couple of minor nitpicks. The leg press footplate is tiny. Even though both footplates are diamond tread, they're still a bit slick so I had to add grip tape to both. The safety handles are unnecessarily heavy so I had to add grip tape to those as well for my wife. It has an 85 lb start weight with a 60 lb feel weight due to the angle, which I believe is 45 degrees. I prefer a lower angle (e.g., 37.5-ish) since that feels better on my knees. If you're on a budget or tight on space, and not interested in those "compact" hybrids like Force USA, this is a great option.

Super quick and easy to take off the bar. They work best on actual olympic-sized sleeves. There is some forgiveness with other collars and sleeves with wider tolerances, but not with these. As an example, I have a saxon bar from a small company where the sleeve is just barely smaller than a regular oly sleeve and these do not work on that. Bench press? Rows? OHP? These are bangin'. Heavy deadlifts? Some specialty bars? Keep a pair of regular collars handy.

For the price this thing actually delivers. The plastic sleeves leave a bit to be desired but the resistance profile is spot on. I ended up selling it because I hated finishing a taxing set and then having to crawl off the floor essentially.

Everything Curt said below. I've never felt unsafe using it but I use it rarely and it mostly just sits around collecting things to sit on top of it. Very reverse hyper-esque in that sense.