Was there last night and had a good time. I learned several things: 1. Charlie's has a cover charge of $3 if you get there after a certain time, I believe this starts at midnight or 1 am. I got there after 1 am and the place was packed, absolutely packed.
2. Yes, in Phoenix, some bars can stay open until 4 am (gasp!). Yes, I know, it blew me away as well.
3. The little Mexican food place attached to Charlie's serves really good food late night, but now I understand why they can't sell water or soda through the inside window to Charlie's customers. That's because Charlie's wants to charge patrons $2.50 for a bottle of water than the Mexican restaurant sells for $1 outside.
Other than that, I had a good time.