This place is well hidden and that's part of what I love about it. It's nearly impossible for it to get too crowded because no one can find it. Sucks for everyone who can't find it though because this place--and the people who work there--rock. The service is better than you'll find in most places and the servers are the type to call you "hon" and "sweetie" not because they're sexist but because they're old.
I went on a Friday night and there was an incredible band (The Cordovas). Wilbert's live shows are free but they'll pass around a basket at the end of the night so people can pay the band whatever they think they're worth. (Take note, music industry.) My husband and I tipped the band accordingly for putting on an awesome show and it was worth every penny. Beyond that I had two ridiculous glasses of wine both filled so high I couldn't even swirl the glass, as well as some pretty decent nachos. The nachos probably put me line for heart disease somewhere down the line but they were delicious nonetheless. Either way, I had waaaaay too good of a time at Wilbert's--can't wait to go back.