This toilet has been installed for nearly a year.  It has not clogged once.  I requires less frequent bowl cleaning than out old one.  In fact I have not cleaned it ever.  Somebody else has, but that is still a win for me.  It is a little heavy due to the one-piece design, but it is well balanced around the access holes, so I found it easy to mount.  Make sure you install the supply line before mounting because you can't reach it after.
The seat is a little flimsy, but after an adjustment to the initial installation, it fits well and stays in place. 
One important thins to look out for is that the drain flange must not be raised or the toilet will need to be shimmed to avoid rocking.  I had to remove my flange, route a recess in the floor and install a new flange.  Big hassle.  If your flange is flush or recessed, than this is a 5-star toilet.