Been using it for around 5 months now.
I guess it depends what you using it for.
I'm using it exclusively for the sport and despite there being literally 8000+ streams available, it's a classic case of quantity over quality.
So the UK streams all seem to work extremely well. But the Supersport channels are hit and miss. Sometimes they work, sometimes they buffer incessantly, sometimes they dead in the water, period.
Every 2nd stream I try doesn't work but if just 30% of them work, there's enough material there to keep you happy for the rest of your life.
They have a ticketing system and always respond to queries, usually within 24 hours due to the time difference. I think they US based.
If you experience any performance issues don't expect much by way of a solution, other than the usual generic stuff.
Britishtv also doesn't provide a m3u link so if you want to use it on Windows PC you'll need to side load Bluestacks Android emulator to get the Onecloudtv/Smarters app running. That's a massive pain in the ass. Bluestacks is resource intensive.
Smarters Lite is the Apple app required to run it. It's fairly stable app but has a multiscreen feature, which for watching multiple streams simultaneously is just incredible, buuuuuuuuut it doesn't work most of the time!! App crashes probably due to the huge load required to run.
The Smarters Player App is a fabulous media player that allows end-users to play their content like Live TV, VOD, Series, and Local audio/Video files supplied by them; on their iPhone, iPad devices. Smarters Player is the lite version of "IPTV Smarters Pro" with all the basic features unlocked...
apps.apple.com
Anyway, it gets the job done, one way or another but for the last 2-3 months I've been looking for alternatives.
Colby tv and Cloud flix being the latest. Both support m3u and both are geared towards SA/DSTV/Supersport. Cost is similar and because they based locally, support via Whatsapp is usually within an hour or so....