I am pleased with Youtube TV as well. I don't think my issues are with them at all. I think it's the Roku device. And I've moved it around to see if my issues were due to signal interference between it and the wifi router, but even sitting next to or on top of the router, it still happens, and again, only with live sports. And it's not due to high usage or broadcasts with a ton of world wide users, like the Super Bowl was. This will happen while watching a Nevada vs. San Diego State basketball game at 11 PM on a Wednesday night. I'm certain it is the Roku.A year ago I left my AT&T two wire internet and went over to WOW cable internet. I knew streaming live sports could be challenging and made sure to wire my ROKU direct to the cable modem. I also changed from Sling to YouTube TV. I have had some moments when cable usage was high in the neighborhood that my picture clarity decreased but I have had very few problems with buffering. For the Super Bowl this weekend I switched to my antenna but found little difference between HD TV and streaming on YouTube. Count me generally pleased with streaming on YouTube TV during this entire football season.
Since it works fine with everything else, and since I can watch whatever game I want on the iPad or Macbook, and the kids and wife remain happy, then I'm ok with the current set up. The TV in the living room is aging. When we get ready to upgrade, I'll move the roku we have to another room and get something different for the living room. Without any need for urgency I haven't spent time trying to fix or upgrade. I've thought about getting the Roku model with the built in ethernet port, and networking it over ethernet cable to the router instead of using Wifi.