I myself, however, already satisfied with the part.
I parked 245 wheels it - and it was difficult enough to find anything clever for this width (for me was decisive incentive to buy).
PLUS:
* The wheels in spite of the small (non-steerable) roles so very easily and conveniently moved as
* The level of suspension is adjustable in 2 stages - up to 220-size or 255mm tire width
* When not in use relatively simple disassembled and stowed
* Is relatively stable
MINUS:
* During transport is shaking a bit part (at least with the wide 245 wheels on it)
* The supplied tires markers are not really the hit:
- 4 plastic rings in different colors, with a small inscription to the wheel position (each in English and German)
- If you put somewhere on the wheels the rings, they are quick off (attach best with cable ties)
Overall, I am very happy to have bought the part and would also decide at any time again for me.