Can anyone recommend a reliable and fast broadband provider?

I’ve been on Virgin in my current place and they’ve been fine but they don’t supply my new flat unfortunately.
An online search for reviews suggest a significant number of deeply dissatisfied customers from all the main suppliers: BT, Talktalk, Plusnet, even John Lewis! I really don’t want to give any money to Sky.
Maybe people who are happy don’t give online reviews, but I’ve had lousy experience with BT in the past, and with anyone who has to rely on OpenReach to get an engineer out…

I work from home 2-3 days a week so lack of reliability or decent speeds will have serious implications…

BT.

Been excellent since I switched back to them had very few faults but when I have they’ve been prompt in replying and sorting the issue.

Is your line up to it? Will make more of a difference.