I installed a couple weeks ago with no problems.  This was my first toilet install, and I'm not an experienced DIYer.  So if I can do it, anyone can.  So far, no plugged toilet, which was a regular problem before.  Also, I purchased this model because it doesn't stick out far from the wall - it had the shortest length I could find in a toilet with a max flush rating.  It's for my kids' narrow bathroom, but it accommodates me, an average-sized adult, just fine.