I'm definitely a fan of Bill's! Located Downtown there are many options in the cultural district, so it took me quite a while to realize Bills was there - however, I'm glad I did. The space is beautiful and very open. The staff was incredibly friendly and welcoming from the moment I walked in the door.
The bar space is certainly big enough for large groups but also seems like if you are there as a solo traveler it would still feel welcoming. I tried several items when I visited and the peanut butter explosion milkshake was amazing!