You don't really sound impressed but OK. I decided to keep the enemies from getting stuck on corners on purpose. I thought it would be a good splash of randomness into enemy waves. It's the one and only time I've ever thought a bug would be fine as a feature. About the tower aiming and field stuff, I totally agree. Didn't really have enough time to balance those specific aspects of it.
Been getting a lot of less harshly critical comments so I'm glad you said something. Thanks.