The lack of level adjustment of the stands is indeed a pain if you are using the speakers on solid uneven flooring because the ball isolated floor coupling is capable of audible rattle with loud dynamic music. I needed to move the C-1's to carpet to solve that problem.
The stand is non-rigid by design and when you own these things you will quickly grasp that the low mass really aids dynamics.
Changes between the C-1.0 and the C-1.1 are comprehensive. New driver, new tweeter, new terminals and the inclusion of Nordost Odin internal cabling.
All I can say right now is Magico have a serious competitor...