There is one place where it currently is a pretty large failure, and that is repair shops. The waiting times are very large compared to other manufactures.
HOWEVER, other manufacturers build for repairs: there are high-cost repair services provided at every dealership. Yes you can get a car fixed, but that's because it's built to need fixing often & terminally.
HOWEVER, other car manufactures follow the law* and makes it possible for independant shops to buy replacement parts and sells service manuals. Witch as far as I am aware Tesla still does not do.
*: in the EU:
> Easy and clear access to information on vehicle repair and maintenance (RMI) is key to guaranteeing free competition on the vehicle aftermarket. Manufacturers must ensure that independent operators have easy, restriction-free, and standardised access to information on the repair and maintenance of vehicles. Discrimination with respect to authorised dealers and repair workshops is not allowed.
