I've used it for youtube videos and some school projects for the kids. I'm happy that it's free. It did not have any crashes, but definitely I'm not a heavy user. I used it in Linux.
The user interface could be easier, for example deleting "ahs and ums" and silent time is a bit tedious. Also there are many output options, and it's confusing for a light user which to choose.
I've also used Lightworks, which is much nicer, but not free (except for 720p). Many of the non-free options want you on a subscription basis.