Things have not changed lately, so what you read elsewhere is still pretty accurate. Here is a quick summary:

Pros:
The Dash 8 IS a great plane to fly.
The flight crews are all really cool.
The contract is one of the best for a regional airline.
The starting F/O pay is one of the best in the industry.
Piedmont is owned by US Airways, which has some benefits, ie non-rev priority and some perks.

Cons:
The fleet is getting old and rumors of new aircraft have yet to materalize.
The company is in no rush to fix broken APUs, which is awful this time of the year.
There have been no upgrades in a long time, right now I think upgrade is 5-6 years (although since we AREN'T upgrading at all right now, that number is really infinity).
Flow through? Who knows when that will happen...

Good luck with your decision, PDT really needs pilots, so you should have no trouble getting an interview as long as you meet the mins and have a clean background.