UKGC status is a baseline. Check clear RTPs, stated cashout times, fast...

https://cashsexpertinsight.talesignal.com/posts/how-do-i-compare-two-slot-sites-using-average-rtp

UKGC status is a baseline. Check clear RTPs, stated cashout times, fast payouts, and easy-to-use safer gambling tools: limits, breaks, self-exclusion. Good support should explain delays