This show is pretty amazing. The jokes are fresh and funny. The lines mesh right in and the characters feel all real, unique, and lovable; even the weird ones. Oh God especially the weird ones.
This show does a lot of things that MIGHT make some viewers uncomfortable on paper but the execution is so good that it erases all walls. If you are straight and have problems being homophobic, Hank is a character that'll surprise you. IMO the best characters are Brian and Billy. I would pay to watch a sitcom or spin off show about those two.
Anyways this show does a lot of what sitcoms fail at; making all of their characters including the side ones funny/fresh/vibrant and lovable. There is a dispatcher woman with a very loud and confident voice who drops profound womanly wisdom and logic.
This is an adaptation of the British version of the show which I will watch soon. However, I loved that they did this show in Chicago and showed a portion of what goes on in Chicago; kids and families end up getting shot and sometimes the show gets very real. Regardless, if you want something to watch that's entertaining and funny and definitely fresh/unique from other sitcoms, this is that one.
Don't let the fact this has been canceled stop you from watching it. Guaranteed better than most shows on today.