It was my first realy good knife in 2011 and I loved it. Plain jane black G10/S30V. Very good ergo, easy to operate, cut very well too, but I became a little bit bored with it after two months of EDC and constant flicking

Wanted better steel and some color. So I sold it and get one of blue M390. Love the steel and colour. Enjoy it for six months and sold it anyway. It was not a very good piece. It has some side blade play, and also centering on blade was off. There is the famous bushing, so I can't fix it with adjustable pivot ;( Also both examples had a lock stick. I hate it. You have to push harder on the lock to close the knife and then there's the click sound when it "unstick". I tried pencil and Sharpie, but it helps only for a short period of time. It always become to stick again. It's worse when you flick the blade open. When I opened it slow it doesn't stick that much, but it bugs me anyway. I decided never buy a PM2 again.
After 3 years and 10 different Spyderco knives I broke my decision. Wanted the S110V, but it was hard to get. It was new and hot. I was waiting 3 months on preorder, then I cancelled it and get one black S30V again. As you can guess it was all the same story again. First love and joy to flick and carry. After four months I was bored and can't live with the lock stick anymore
What is the point of the story. PM2 is great knife, but it's not perfect. No knife actually is. For me the biggest drawbacks are tendency to lock stick and blade to handle ratio. There is a lot of good. Ergonomics, lightweight, four position clip, it's nice to flick, slice very good, many different steels and colors options...