Its a great place to work. A small friendly team with no ego's.
Not sure where you got your info from as the units last controller joined over 10 years ago. That should show how well the unit at Sumburgh is, given the high turnover of staff at other airfields. Since then there have been several trainees who have spent a period of time at EGPB before heading on a procedural course.
The only change in the last several years is the level of traffic which is up considerably.