daily driven for 2.5 years since paint, garage kept, but parked outside from 7:30 to dark usually. never buffed, or wetsanded.
car was painted properly, sure theres a couple shitty spots, but theyre my fault for not doing any prep, and not wanting the painter to, i got a crazy deal on the job, and just didnt care. it didnt need to be showcar quality.

but trust me dude. single stage is always just fine.