Rogue quality, poor design
I purchased this with my RH-2 Reverse Hyper from Rogue a few months ago, and sadly, I regret it. There is no question regarding it's durability - this thing is solid. The pads are nice and dense, the lever adjustment works well in terms of hole alignment and the metal is thick - all very much up to Rogue standards. However, the design leaves much to be improved.
As others have mentioned, the range of motion of the reverse hyper is severely limited with this attachment. I'm by no means a tall male (clock in at 5 10), and I still have the limitations that the previous taller lifters mention on any adjustment setting. If you imagine the resting position as your legs being perpendicular to the floor, and the top-most position being your legs parallel to the floor (creating a 90 degree angle), you're lucky to get 45 degrees of movement with this attachment. This elicits a minimal training stimulus, if any. When you reach the top-end of the swing, the attachment "bottoms out" with the connecting lever, jamming your femurs into your hip sockets. So not only do you elicit a minimal stimulus, you can easily injure yourself (rather counter-intuitive for a piece of equipment that supports good spinal health via decompression) . I've tried all the adjustment holes, too - all to no avail.
Also, as others have said, you CANNOT wear lifting shoes with an elevated heel - they don't fit. It's frustrating to attempt a superset with this attachment and other movements due to putting on/removing shoes (For example, I don't like going to good mornings and performing those barefoot, or any movement for that matter). I'm not sure why that foot bar exists anyways - every other reverse hyper I've used with a roller has never had those. Other rollers that I've used allow for the rollers to move along the posterior leg.
It's a shame, because as I mentioned, the quality/construction is very Rogue-like - it's durable (that's why it gets 2 starts and not 1 from me). However, I really wanted this to work because most roller attachments allow the lifter to target the lower back more compared to the strap that hits the hamstrings and glutes more (yes, the strap still targets the lower back, but not to the same degree in my experience with other rollers). I would certainly just stick with the strap that comes with the RH-2.
If it had not been for life winning the battle during the month-window I had to return this attachment, I would have returned it. Unfortunately, life gets in the way at times and I missed the return window. So now I'll leave this attachment (that I've used twice) to sit and collect dust until I have the time to have it fabricated. I believe if that foot bar and the connection assembly were modified, this attachment would work much better.