Never heard of them .. but I've used
https://hal-locate.co.uk/hal-locate-tracker/for well over 10 years now, and still very happy with both the product and the service - on the latter - when I got the new phone, samsung s10e, it all worked straight away, no messing, then samsung did a massive update and it all just stopped, no way could I get it to work, and this was on a site 140 miles from home as we were about to leave on the sunday, and I could NOT disarm it ...... Contacted the company and ended up with a techies personal mobile number and after about a bit of faffing he turned it off for me. When I got home I had to phone him ... he re-armed it to cover the insurance agreement. Over the next week he phoned me 5 times with suggestions, none of which worked, and also advised that I was not the only one with the problem ... on the Friday Samsung did another update and it started working again !!
So, the problem was nowt to do with the company, as proved by the system working for his phone, but all down to samsung, however he continued to try and fix a problem that was not his... that I consider to be excellent customer service.