Pros
Good tech, great people, great location
<edit - 21/12/12>
After reading some other reviews on NB I think it is worth putting a few points right - there is now on call allowances and when I have to work out of hours or on w/e I get time in lieu also. Benefits are improving also in the last 12 months, I guess thats a good thing about the RIM takeover.
Cons
Was taken over by RIM - which meant that some big corporate processes and policies had to be implemented which impacted culture to a degree.