Pretty interesting, but gets way too hard way too quick. I found the best way to beat things is to keep resetting your points and strengthening up the abilities that best suit the oncoming enemy (eg: orc attack upgrades for forgs/snakes, boar upgrade for ranged enemies, and golem upgrades for tough ones). Remember the yellow dot upgrades as they make a huge difference.
It's a pain to play like this though, and too many times on too many levels i had to restart. Making this game actually a trial rather than enjoyable. Too much mucking around really ruined the game flow.
Therefore i only give it 3 stars.