The S and X have improved quite a bit since they were introduced. Drive unit replacements are rare on newer cars, the battery packs have always been pretty good and have just been getting better. Some noise "problems" are just noticed because the cars are otherwise quieter than ICE. The cars aren't perfect, but my 2016 has had fewer problems in the first two years than my last car did and I drove that car for 24 years. Mechanically it was still in great shape for its age when I sold it. All the problems the car has had I would classify as nuisance problems rather than anything serious.