It's a love-hate thing for me. The system is certainly more stable than my Windows install and it's actually more power-efficient, which is important for my laptop, but installing programs that aren't in the Software Center tends to fail far more often than a simple Windows install of the same program, and I'm not even talking about WINE support. (*boringexample*It makes me ask whether I consider my time worthless when it takes me 45 minutes to find out why something isn't installing even though I have all of the dependencies, only to come up without a solution.*boringexample*) Certain rough edges can come up which keep making me question whether the investment of my time is worth it, things which Googling around doesn't solve.
So, yeah -- I want to like it more, but it knows how to annoy me once in a while. Linux is 90% of the way there for me, but it can let me down when I need it.