Pros: nice art, entretaining for a while 1-2 hours, no huuuge timewalls (Except for energy that doesn't scale with almost anything)
Cons: the part that requires hardcore clicking ("mana") actually hurts your game much more than it benefits. I actually finished the game without realizing that 'dying is good' (unlocks prestige level) as a 1138 year old time traveller. also quite plain (only one prestige level that isnt' even required to finish the game)