Does anyone have any direct experience with these boards. I am trying to decide between PiBot and xpro. I have heard a few good things about both. Please let me know advantages and disadvantages of both. What I've heard and ASSume... 1. PiBot is a bunch of little boards linked together and xpro is all in one. Would be nice to have it all in one but, it would also be nice to replace each component individually if just one part went bad. 2. Mark Carew recommends the xpro and I've only heard of the PiBot though it was mostly excellent reviews about it. 3. PiBot is in Stock right now and the xpro is not. I'm not in a hurry but do want to get it ordered so I can feel it and see it. I'm happy with the $130-160 but would be willing to go more if it the right answer. THANKS IN ADVANCE FOR YOU GREAT INPUT!!!