Yes, it was an unexpected pressie from 'Santa' a couple of years ago! Inspired by the TV series Detectorists, apparently.
Finding somewhere to use it can be a bit of a faff. You need permission from the land OWNER, which can take some work. The easiest place, unless you are mates with a farmer, is the Crown Estate. They have a website with a map. Everywhere on the map coloured purple is Crown Estate land where blanket permission has been granted for metal detecting. Most of it is beach with some other bits and bobs.
I haven't been out with it as much as I would like, (same story as the bike!) but I've found several lumps of scrap, coins, fishing weights, and a bullet! Nothing really old yet but I live in hope...