Cask has been around a few years - it's a decent place, managing to straddle the gap between lively and too trendy pretty well. Ironically, given the name, real ale is not their main product on sale - which in our view is a misleading - it seems more focused toward European lagers. However, as Jim states below, there usually is ale and it's often good. Not a regular venue for us but certainly one of the better places of its type. One of the negatives can be a bit of a Deansgate overspill - pretty understandable given the location.
Last few visits saw three ales on - this seems to be the norm.