Greetings. Funny enough, I learned this the hard way after bouncing between several platforms that looked amazing on day one and annoying by day ten. For me, the biggest things are market variety, smooth live betting, and whether the site feels transparent about promotions and terms. Somewhere in the middle of my search I came across https://gbbet.co.uk/ and used it mostly as a comparison resource to see different sportsbook features and offers in one place. That saved me a lot of random Googling. Also, don’t underestimate customer support. You never care about it until something breaks at 11 p.m. on a Saturday. Then suddenly it’s the most important feature in the world. Ask me how I know.