Great aesthetics, middling gameplay. The story is unlikely to grab you, and the battles probably won't either. However, the art is excellent, the UI is smooth, the music is above average, and if you're the type that derives enjoyment out of building up your team, you'll have a good time. The stamina rate is much better than it was. Assuming you make use of the (somewhat threadbare) Adventurer's Guild room, the shop (which features a number of keys tradeable with easily-farmed gold), and hitting your daily/weekly quest target rewards, you won't run out of keys on a f2p account even after playing for several hours a day.