I've had two VX's and have had fewer problems than I ever did with any other of my vehicles.. I do more (f'roading, curb jumping, etc.) to the poor thing than I did to my other cars and it never fails me.. Being a mechanical thing they are gonna break. The question is, when? It's impossible to predict what will happen if anything.
You can worry about what might happen and avoid buying or you can jump in and try it out.. Yes, warranties don't last forever but you can get an extended one that is renewable and that could help curb any fears that you may have.