I'd give the guy a chance because he has some really great "pros". The "cons" you listed make him out to be a weird person to me...but working in the mental health field myself, I will tell you one must be weird to work in MH. I'm quite weird myself. As my boss will say, "You're normal? That means you're boring and I don't want to talk to you. You're weird? Hell yes, come on in, you'll fit in just fine here!"

All three of the T's I've seen have been a bit "off". First one was really strange, second one was the closest to normal, and my current one is like me...right in the middle of the weird spectrum.