It's really neat! I went through the process once and found it fascinating. The bars and saddle could be moved into any position while I rode to check power output and comfort level. At each spot I liked a "snapshot" of the position would be taken. Once we found a handful of positions (including my original position), each were revisited in order to determine my favorite. Strangely enough, I ended up back at my starting place. Well, maybe not so strange. I was well fit before I went in. This was part of the process for ordering a Guru.