After a few games, my first impression is "wow, that one's difficult". I didn't make it past Tengu so far. Maybe the magic-centered mechanics are just not my thing (I usually play Huntress, sometimes Rogue, rarely others).
I feel the Cleric lacks thrown weapons (OK, Mage also has none, seems to be a pattern) and the Tome recharges too slow to really use it as a replacement for thrown weapons. (Duelist's special weapon abilities are much faster in recharging, for example.)
@HopesBeyondTheSky
Good point, I think that is why I feel the tome recharges too slow. Compared for example to the Duelist, her weapon abilities recharge way faster, and she is not as dependent on them the way the Cleric depends on the Tome.
@janomike