I'm posting early on this one because I'm off on holiday tonight.
I listened to the "Highlights" / Czech Philharmonic version suggested by
@KnaresboroughBlue.
You may be surprised to learn that opera is not high on my listened-to genres, and I found this a tough listen for at least some of the running time. I'm not qualified enough to comment on the technical ability of the singers, but it sounded to me that they were doing what they were supposed to be. The main problem was the female singer - I found her voice uncomfortable to listen to. Let me clarify that point: I don't mean in a "I'm into rock music and I don't like all this poncy opera malarkey" kind of way - I mean it was physically uncomfortable to listen to.
The male voice was fine though, and it sounded good to me. I also liked the drama of the music, which I'd enjoy if it popped up on a soundtrack, but listening to this in isolation, it felt like I was missing out on some drama somewhere.
It's just not my thing and it's not done anything to make me want to listen to any more opera, but kudos for trying something different - hopefully others will get more out of it than me.
5/10 for technical ability and wobbly eardrums aside, it didn't offend me.