Anything wrong with that or should I go for it 
I'd suggest that you inform yourself about the update support given by the producer of the busboard.
As second hand user you may get support/updates or not, depending on the producer's will and choice (which may be reasonable or not). You will run into this situation even if you are still in the legal warranty period of the board, and even if you have the original invoice from the dealer selling the board to your first owner.
I just want to remark this as I did the same as you, and learned a lot from this issue.
Michael
