I'm two and a half years on the line in a 737 (doesn't time fly).
I have the best job of anyone I know. I wouldn't seriously consider doing anything else.
The job is a lot of what you make it. No job is what it used to be in any professional area. There *is* no perfect job though that doesn't stop pilots forever seeking it.
The industry will grow very nicely in the next decade. Demand for pilots will pick up and with it the terms and conditions of employment. The dark years we have experienced since the millenium are now nearly past.
I find more to be cheerful about than miserable and a lot of my friends in other professions cannot say that.
You can get a hell of a kick out of a hand flown visual approach from 10,000ft greasing it down 5 minutes ahead of schedule. Try matching that from inside an office.
Go for it,
WWW