It's really one of those anecdotal experiences. I used Samsung devices exclusively because they have RMA offices all around SEA region. On the other hand Apple's iCare in my current town has 2.2 stars on google reviews which I didn't know was even possible. When my work iPhone's battery died I decided to drop 70$ from my own pocket rather than deal with iCare - that's how bad it was.
All I'm saying that warranty service anecdotes are just that - anecdotes, and your milage might vary.