I've been using PS Vue for about a year and a half. It has gotten progressively better and it has almost all the channels I want. I wish they would add A&E and History, but other than that, everything is working well. The DVR is fantastic. ABC is the last local that I'm waiting on, but that should get added soon. I read they signed the contract a couple weeks ago, but it takes time to get added. Cost varies but I have their top package with no premium channels and pay $55 per month. I was paying around $150 per month for Dish before I canceled.
When on US Cellular roaming, my G5 was always on SRLTE. I think that's how it determined whether to roam on LTE or not; if it had 1X on US Cellular, then LTE roaming was permitted. The moment it picked up Sprint CDMA though, it dropped US Cellular LTE.
Actually, as far as I can tell, US Cellular is SRLTE across the board. My US Cellular phone, and my father-in-law's, both always have SRLTE running.