SANWA Microswitch OBSA-LHS1F

Great switches, not so good longetivity

Not many people mention that but they have a much shorter travel distance than competition, making it.... the best switches for the game. Obviously they feel great too. However, another thing that's short is lifespan. I've played for 1-2 hours a day and switches lasted me about 1 year and 3 months. Make sure to you can source these switches consistently or atleast stock up on them.

Had a button starting to drop inputs, this immediately fixed my problem and came packaged well.

Good while they last

I bought a bunch more to have spares ready to go. Seems when these go bad, they're prone to misfiring in the sense that they trigger when you don't intend for them to, so this manifests as a lot of early nears and early errors. You might have to use the controller to play a different game that shows you judgements on individual buttons (e.g. Stepmania with Simply Love theme) in order to correctly identify which switch is the problematic one. The first switch I started having problems on after about 7 months of use, playing about 4-6 hours per week, on average.