Sim only home Internet in EDINBURGH

I posted earlier asking for recommendations for a sim only Internet provider in Edinburgh and it's been removed because it wasn't 'Edinburgh enough'. Unlike other questions asking for recommendations on this subreddit I guess? Or the million pictures spamming this subreddit?

I was looking to hear from people in Edinburgh who have switched to a sim only contract for their Internet and have bought their own router. Does anyone use smarty or lebara? Do you have good signal? Particularly interested to hear from people in Granton (EDINBURGH). thanks in advance