I had bought the MF Nu-Vista, but it didn't work in my system and I returned it to Music Direct and bought the Parasound JC3+ which sounds great in my system, I also bought a used JC 3Jr. which is also still in my main system.
I have just recently bought the Whest Three Signature MM/MC Phono Preamp for my secondary system that I use with my tube amps and it just makes the music come alive with the tube amps.