Most seem to have good experiences with them, but my incan Pelican M6 is a total pile. I don't know if an M6 qualifies as a 'new' one. I bought mine several years ago.
The momentary tailcap was incredibly stiff, and coupled with some very sloppy thread fit between the tailcap and body, the momentary function didn't work properly at all. It either requires a thumb-bruising, way-too-hard push to activate, or it will stay on after release.
I called Pelican and was told (in so many words) that I obviously didn't know how to operate a momentary switch properly. After a bit of prodding from me, I was finally told to return it, which I never ended up doing (I decided it wasn't even worth my time).
Additionally, the plastic window is very easily scratched, to the point where mine has very bad artifacts in the beam, even after light use.