I too, was surprised with how much I liked this venue. Came here on 4/4/14 to see Millennial (if you haven't heard of them, do yourself a favor and look them up). Amos' is much bigger than I expected, and there's really not a bad spot to stand/sit in the house. There is limited seating, very few tables, so be prepared to stand. The website is VERY helpful with parking. I'm glad I checked it out. There seems like there's a lot of parking, but some of it is two zone - red flag!
I really enjoyed my time here, loved seeing the band, and the drinks were pretty good. (Check out the specials, and you'll be good to go). There are a ton of places to eat on south blvd too - so make a night of it!
(And yes, bathrooms are dingey. Go before you get here.)