I have it! I love this game. <3
I think it's fun and addictive; I racked up over 40 hours in the first week after I bought it. (Granted, this was on a vacation, but I think I'll play it plenty even with day-to-day life time constraints.)
The new capture system is so much better, IMO; I'm happy that you don't have to do, say, 80 consecutive loops anymore. It's so much easier to avoid attacks now, and you can even level your styler up in more ways, which is nice.
The Ranger School is, quite frankly, kind of cute. Plus, you have a family and more friends, and more partner Pokemon. The plot seems a little more "grown up" (not quite the word I'm looking for, but close?):
There's plenty of cheesiness, but hey, it's Pokemon and there's some cheese in every game. I loved the first Rangers and I love this one, too. I think I'll probably replay it multiple times. <3