Like Mort said, this one takes quite some time to really get started. You spend the first few hours with just Albus. Then it's just two characters, which is still pretty limiting.
Oh, one other thing about this game: while the battles are sometimes hard, recovery afterward is VERY easy. By the time you've looked over the new masteries and items you've gotten, you'll likely be all healed up. If you aren't, just go to the bar and order some cheap food to heal up. This isn't an XCOM style game where you'll lose characters forever if you don't play well. It's a bit like a school where the tests are hard, but you're allowed to take them as often as you like.