I was looking at these, too, to alleviate wrist pain but then a buddy mentioned just using dumbbells (thanks, gibbee!). So last night I did my push-ups with my hands around my 3# neoprene dumbbells. Worked great to take the pain off my wrists.
I understand the perfect push-ups rotate, so it's not exactly the same thing, but in order to take the strain off my wrists, the dumbbells worked for that. Maybe if I get better at push-ups I'll look at the perfect ones, but for now, the dumbbells are my new best friends.
Besides, gotta save my $$$ for STS!
April