I really liked the atmosphere. There are some private booths as well as an area that looks like an old stoney castle in the back.
Service was super friendly, and the night I was there, there was a special: $5.25 (taxes in) for a pint of Mill Street Organic, with 25 cents going to Movember. Sold. It was a Thursday and they had DJ spinning music around 9ish.
There's tons of free parking in the lot on the side.
Apparently they have a happy hour that includes $5 Strongbow, Killkenny and Guinness pints from 4-7 on weekdays. Too bad I don't work in Mississauga.