I am a huge guitar pick nerd... Spent hundreds of euros over the past few years in an attempt to try all of them.
These are a great choice and I keep returning to them all the time. The material feels nice to hold, sounds great.
The size is perfect, it's in between a Jazz III and a regular pick, I think they nailed it.
The thickness is also great, they are thin enough to forget that you are holding them yet thick enough to remain solid while playing.
They are slightly on the softer side, material-wise. I destroy them in a singe pick scrape... But then again I destroy pretty much any pick like that. I get too excited. ^^
4.9/5 for me, highly reccomend.