It's not a bad gig overall. Sure, people are uptight over the merger but that really isn't an issue for you.
On the East we are wwaaayyy short pilots and age 60 attrition is about 25 per month moving things along nicely. 300 Captain upgrades this year with about 1500 F/O's so, on paper, new hires will get a shot a the left seat in about 4 years - unless the seniority award arrives first to ruin the party.
I'd recommend living in base for quality of life issues on reserve. If you want seniority fast then I think there are over 30 openings on the E-190 which puts you close to a block right out of the gate. The International in PHL is going junior so if you want that type flying it'll be available once your 18 month ( 12 on the E-190 I think) seat lock is up.
Can't give you any intel on the West side of the house but it seems to be stagnant like the rest of the domestic market.
Congrats, you are at the front of the current hiring boom - 350 pilots in the next 18 months. Personally, I think we need many more than that!
All subject to the economy, oil and tea leaves.