I had the the Nu-Vista for a couple of years in my main system and found it to be a nice unit, but a bit restrained; but with the appropriate components it can be the heart of a top dog system. About a year ago I got the Trivista 300 for my weekend home and find it to be a bit more open and the core of a truly great musical system. The great advantage is that the amp can drive low impedance loads and therefore is so easy to match with a wide variety of speakers. Frankly, it is so musical and effortless, it really doesn't matter if it is not the "last word" in latest and greatest super amps. Highly recommended!! MF have a great house sound and it stands the test of time IMHO. Oh BTW, although the weight makes a service return a bit of a hassle, remember the company has been around for many years now. My units have been 100% reliable.