I use these for guitar, which may already sound like overkill but y'know, you gotta chug.
I like how the picks have a symmetric design basically giving you 3 edges to wear out so you basically have 3 pick lifespans in one which is amazing.
The solid material which paired with the thickness is likely intended for bass, but for guitar i expect these to last a long time, i would even expect several string sets to come and go before i go through a pack of these.
Most guitarists will probably settle for a sharp edged 2.0 mm pick for riffy stuff but not me hahaha
To each his own i guess, i also like that they are quite large as surface which makes them feel more stable.
Grip is nice too, can't complain