Had mine since '80, but it's kind of a hybrid.
When I first tried to grow a beard (to look older), the areas on my cheeks wouldn't fill in...so I shaved them. Still do. I guess it defeats the whole 'no shaving' reasoning, but it does limit the amount of time and difficulty with it.
As to the heat, it gets well over 100F here for long stretches in the summer, and I've never noticed a problem...but I keep mine trimmed pretty tight to the face, and as I said, it's not full.
My wife likes it, and as I get more gray in it, it seems that younger women want to flirt with me more. Cool.
I say: Grow the Beard!!!