I've just gone onto 3's '5g Outdoor Hub'. It's much faster than my fibre to cabinet was. The hub is on my outside window cill (it's designed to be 'stickied' to a window), router inside window cill. I've had to reset it (off/on) twice. Getting between 75 and 100 mbps. Previous was 35. Under £20/month on offer.
CG
PS, long try it and see period...