I've tried the Ministra player as I was the same as you, it's nowhere near as good as it looks and it's full of bugs to the point it's unusable.
I think some of this is provider-specific though as I've only ever found one decent supplier that uses Ministra middleware. Even at that, it doesn't work with existing Mag lines - the provider would supply you with credentials for the app. 99% of them are Xtream-Codes-based anyway and don't support it.
Ideally though, the provider should using a high enough Stalker version that has the modern interface on the mags to begin with, but none do as far as I'm aware as XC is cross platform.
Regards
Flurian