Last I heard, they were working 6 on/3 off (3 earlies & 3 lates) on a 3 watch system. Airfield open from 0630 to 2130 with some extensions for late arrivals. Pay isn't to bad, not quite NATS rates but it was close enough when I was there. Market based pension rather than final salary and they've got SSR. The guys in Air Traffic are a cracking bunch to work with.
However, the airport management are a bunch of ******s unless there's been a clearout. The eejit who was the Ops Director when I was there now runs the show. It almost seemed as if there was a hatred of ATC and more than a bit of salary envy. Human Remains (HR) are (or were) woeful, but there's worse places to work.