Could be better.....
It just seems too generally hard and tedious. It took me about 122 minutes to kill him. I probably died 1000+ times. There's just so much stuff all over the place, and you move REALLY slow. You don't fire fast either, and the bullets travel slowly, so it's hard to hit Smithy when he's teleporting and zipping all around.
Good game, though. Just has some things about it....