This is - as someone points out - a "mediocre recording". It appears to be a live recording of a `revival' of the opera, 250 years on, in Mantua by a local group of musicians. There are times when the strain of production shows: late in the first act a violinist loses his tuning and one has to take the will for the deed for a few bars. That said, there are still many good things here. In the first act there is a wonderful bass and oboe duet, a sly and funny soprano aria directed by the villainess at one lover, then another and then at the audience. (This is so delightful that a similar aria occurs in the third act) and some lovely work by all the singers throughout. There is nothing like a live performance to bring out the best in good musicians, even if they are not famous names. (Listening to this recording , I wondered if this is not the way Vivaldi himself might have heard it at the premier: rushed rehearsals, local musicians, last minute changes.) I might add that the recetitives are performed slowly, not in the rather rushed manner I hear so often in "better" recent recordings of Vivaldi's operas. This allows a non-Italian speaker time to follow the enclosed libretto. (There is no translation, but with a few years of side by side translation experience and the excellent synopsis enclosed, I was able to follow the action fairly well.) One thing not mediocre here is the recording itself. Everything is audible - good and bad - and nicely balanced. Given that this is the only recording available and the price is so low (I might have added a star for that.) a Vivaldi lover might do worse.