I've recently installed Kodi (via playstore) onto my phone and stream through it to the TV via chromecast. It does play up at times but it is mostly very good. I am considering buying an android box and connect through ethernet to eradicate issues watching it on TV.
I'd recommend you perhaps just try it on your phone or tablet and then you wont spend a penny. I've had no issues watching that way. It is a miles better picture than the web streams, no pop ups etc.
You need operation robocop for the Premier League pass (every game and I believe the games are repeated over and over), its so easy to do (it looks far more complicated than it is). I don't understand the not user friendly part because it is a great interface. Takes about 15 mins max to set up and I'm not kidding.
https://seo-michael.co.uk/tutorial-how-to-install-operation-robocop-video-add-on-kodi/
You have access to lots of things, music, gigs, films, documentaries, just masses of stuff.