Boy, that's a tough question with no clear answer. There are so many variables that I am sure you would get a different answer from everybody. For me personally, it has been great for me at Eagle thus far. I had to commute for the first few months, but living in DFW and being based on the ATR was great for my wife and I while it lasted. Commuting to reserve sucked, but reserve was great in base on the ATR (for the one month I had to do it). My first line I held was day trips with 15 days off. I only had to to four day trips once, every other month was either day trips or two day back-to-backs. I got Thanksgiving and Christmas off my first year on the line. Actually, I didn't just get Christmas off, I got 9 days off around it. I had to work New Year's Eve, but was able to take my wife with me and spend it with her.
Of course, all of this has changed since I have been displaced. (Although getting a forced paid vacation for over two months ain't a bad life!) I expect to be working four day trips and not getting my top few choices, like I was before. The bankruptcy could change a lot of things for the worse, but even still, I expect to continue having a good family life. It's been great for me thus far.
However, this is only one tiny part of one story. I got on at Eagle at a great time and being on the ATR was absolutely amazing for my QOL. I guarantee, though, that for my good story, there is a handful of horrible stories to counteract that. I am sure it won't be this good for me for the rest of my career, but it has been great thus far. So I guess the answer to your question depends on timing and luck.