How smooth is the swivel?

I don't really see the point of doing pushups to work your chest but rather a better workout for the triceps. There are better work outs for the chest. When I do pushups my elbows/hands are in close to my body and hands meet my chest/nipple area in the down position. I think that works the triceps much better than opening up the stance with elbows out wide to try and work the chest. Although with hands and elbow in its quite a bit harder on the wrists.

And getting an ab working doing pushups like this is advertised for...come on. Thats just slighly better than a 12oz curl.