Hello, I have had my R2 for a few weeks now and really like it a lot. It prints great. But... The bed needs leveling just about every print. I ditched the auto level and zed offset in place of the guided level, as it seemed to no level good every time. Now to level it via the guided tour route does not take a lot of time, but the way the bed is mounted causes the level to shift very easily. I'm sure this is from taking parts off the bed (I try not to remove the bed at all when ever I can) On my I3 clone, I can run with the same level usually for 4-5 prints. It does have a fixed bed though. I also have a tricky back left corner. When adjusting it, there is a point where it goes "wonky" and I have to back it off to get it to stay in the place I want it. It's kind of hard to explain. Now, when I level it, it prints great as I said, and I can print pretty fast with very good results. This is not keeping me from loving the printer, but just a slight pain. No FFF printer is perfect I know. Also, the bed surface is so easy to mare and scratch. I only used the supplied (why?) metal scraper once.