BJ's has a nice open layout and a good atmosphere, especially if you like sports. There's many TV's around and a bar area where there's a big variety of beers and drinks.
As I don't drink, smoke or like sports I won't comment on these.
I decided to try BJ's for their deep dish pizza which is advertised as Chicago style and has received positive praise so far.
The appetizers were quite good and not very heavy.
The pizza reminded me of Uno's, though not quite as good:
It wasn't real Chicago style in that the crust was relatively thick. It was more Pizza Hut pan pizza than Chicago style.
The sauce was not on top as per Chicago tradition but it tasted great, as tangy as it should be. The other ingredients tasted fresh also. The crust was relatively generic, it was baked pretty good and was crispy on the outside but didn't much taste and was too thick to be true Chicago style. Greasiness factor was slightly above average. A small pizza can easily feed 1 person with a big appetite.
So for the pizza,
As Chicago style: 2/5.
As "generic deep dish pan pizza" Pizza Hut style: 5/5
(much better than Pizza Hut's)
Service was just adequate. Servers weren't really attentive, they catered mostly to the people at the bar and only visited my table once after they served our order.
When I went to BJ's I wasn't aware of any big game on the TV but the people at the table next to me were shouting and cursing when they got excited (as did 2 other tables plus plenty of people in the bar area) every 3 minutes or so. I'm not a sports fan so I don't care about sports events but it appears this place is more of sports bar than a restaurant. Prepare to be annoyed by noises and shouting.
Overall I'd give this 2.5/5 (rounded to 3 because the pizza was good, not Chicago style though).