We are Associate Members of the Society of Willwriters.
We are UK-based
Portology Ltd. BVI-Incorporated. Company No. 656948
Head Office address: 14 Britannia Place, Bath Street, St Helier, Jersey
Seems legit.
Go to a proper solicitor as you say, there'll be a cheap, will specialist in most towns, governed by the Law Society.
Indeed, it seems legit. So why use a local solicitor?
A will is just a declaration. You can write your own. It's a good idea to get it independently witnessed. Unless you have something unusual it's not worth spending money on.