This is actually very good. It is a very juicy game that feels very good to play. There are also lots of enemy types so it doesn't get stale and boring too fast.
I think the only negative I have to say about it is that it doesn't really try anything new. I think you should explore the mechanic of searching things like walls or the water. When I found a blank tile next to a wall that didn't lead anywhere I kind of half expected a secret passage.