The folks at Brew Monkeys have been super nice to me every time I visit. On my second visit, three weeks after the first, the staff not only remembered my name, but what I bought. Wound up BSing with them for 20 minutes or so about my first batch, and they gave me tips for future batches. I was really impressed! I hear good things about Paradise but haven't gotten to visit them yet. As for Listermann's, I heard the same things you guys are saying- that the customer service sucks most of the time; that you are bothering them by stopping in.
The February Malt Infusers meeting is at Brew Monkeys on the 13th. Planning on stopping by and seeing what they're all about. Anyone else going?