HIAL
Rocky01, I worked for HIAL for a couple of years not too long ago and to be fair they were pretty good when it came to pay and conditions. the job was very enjoyable and we had a pretty good bunch in Orkney. The SATCO who was there when I left was a great chap, bit of a wimp ex Royal Marine body builder but still a great chap !
I think senior management struggled at times as most were none ATC experienced but from my experience that is the norm. HIAL is a great platform to learn the ropes and decide what your future course may be after that. I personally could have stayed in Orkney for years but could not turn down a better job when it was offered.
You do feel a bit out in the sticks on the islands but you just have to adapt to a different way of life. The Orkney islanders were a very friendly bunch so I imagine the Shetlanders to be similar.
I certainly would not turn down HIAL unless you had a very good job offer from elsewhere. Best of luck