I test drove YouTubeTV for a few months. I canceled it (because I'm hardly watching reg TV these days) but will turn it back on for the season. Actually, I'll probably break down and turn it back on for the Olympics. I was happy with it though. A negative was that I wasn't a huge fan of the interface through my FireTV and it's limited remote features.
You get a discount your first three months, so my advice (if your primarily only getting it for UK basketball) is to wait til right before the first game.
Also, a great feature of YTTV, is that you can take it with you on your phone. That way you don't have to miss anything when your nephew decides to get married on a Saturday afternoon mega game day.