Yep. I tried it out because I enjoyed other games by NIS like Disgaea, Makai Kingdom and La Pucelle Tactics. Phantom Brave was a bit of a letdown though, I just didn't enjoy it as much as the other games, and eventually stopped playing it halfway through. I think my biggest grip was that the movement and combat system weren't as fluid as the other games.
If you did like Phantom Brave though I would definitely recommend the other games that I mentioned if you haven't already played them