Musical Fidelity Digital Playback

Expanding on a previous question, how does the Tri Vista 21 DAC compare to other DACs or CD players in the MF line? Is it's sound significantly or just marginally better/different than other models - which models and how? Opinions needed! Thanks in advance.
I had the MF A3 DAC and traded it in on the TriVista. I thought the TV had better resolution, a more extended base, and a lower noise floor. I continue to enjoy the TV, and think it is one of the best out there, short of the $10K + crowd. I have had it for nearly a year now, with no problems of any kind, it has always been able to lock on to the incomming signal.