@Traumflug yeah it's understandable. A shop system must be easy to handle from the begining, but still offers all the function to be sucessful in the long run. I hope TB is been able to serve a new merchant experience.
Little things can be killer arguments. In switzerland we know for example only money values with at least 5 Rappen (Cents). There is no 1 Cent coin. If a shop system don't support rounding on 0.05, it can't expect to become popular here.