The Toronto Lover system:
5 stars = Must visit!
4 stars = Really good. I take my friends here.
3 stars = Somewhat worth it... if you have nowhere better to go.
2 stars = Below average. Attend only when necessary.
1 star = Do not visit!
Castro's is a great little bar with a reasonable variety of beers on tap and good service. It's a nice space for a group, or just to sit for a bit and have a drink. There's a reason it's popular.
4 stars