I'm using an Apple TV with the IPTVX app, which has different login options (M3U via URL, M3U via domain user and password, Xtream API), so long as it works with one of those I'm happy.
I like a clean interface so I'd like to be able to hide or remove channels and categories (my app allows for that). I'd like all premium UK channels (full HD and ideally 4K), especially sports and PPV. I don't want foreign channels except those that show 3pm matches, if possible. I'd like regional news ideally also. High frame rate/res is a must for sports and VOD.
The most important thing to me is a good VOD selection, ideally Netflix and Disney+. I'm reasonably tech savvy so don't anticipate needing a lot of help, though I'd like to be able to ask a few questions and trial the thing before paying. I'd need two simultaneous connections too as will be logged in on multiple devices.