Some people hate lifting blocks, others don't see it as a problem. I'm the last I've been using it on various machines for several decades. As long as some things are taken care of, mostly not too high (my limit is 2 inches) and never deployed from the front, I've never had a problem. Based on the reviews, I was surprised at how easy they are to install. Many people have complained about how difficult it was to put the nuts on. Oh well. They are lock nuts. They must be tight. I used a percussion tool and it took me about an hour to do the whole back. Came back after about 100 miles and checked the torque as per the instructions. Easy, done.