I tried YouTube TV for two weeks back in January and I loved it. My only complaint is that it doesn't allow full screen rewind / fast forward like you get with cable or DirecTV. I plan to switch full time when AT&T jacks up their prices in a year (they offered me deep discounts for a year when I threatened to cut the cord).
My TVs are all fairly new, and they have the YouTube TV app built in, so the program guide was really good. I did find that the interface, recommendations and search were excellent, especially compared to DirecTV.
For purposes of comparison, I have pretty much an open pipe with DirecTV. My bill had gone up to around $275 per month before I threatened to cut the cord. The same lineup with YouTube TV, including all of their sports, HBO, Cinemax, Starz, Showtime, would drop to about $125 per month. That's $1800 a year I can spend on golf!