Yeah, they're not bad. But not that great either. In terms of vocal clarity, they're fine, but I keep cringing a bit at their pronunciation, which is horribly Finnish for the most part.
I went to see that show, which is also available at classiclive.com, but if they're going to perform any more concerts next year, I will have to seriously consider. I also went to see their Queen-tribute last year, which only differed by one song. Last year's performance of the King's Singers' arrangement of "Seaside Rendezvous" was replaced now with Rajaton's own a cappella arrangement of "Don't Stop Me Now", which is also to be released on the album in about a month. Not bad that one, but I was expecting more drastic changes in the setlist. However, it was still hugely more interesting than Q+PR setlists so far. Any symphony orchestra to perform Innuendo, Bohemian Rhapsody, The Show Must Go On, Jealousy and Mustapha is good in my book. =)