I own a VTX150Pro and it is a great sounding amp. No noise other than you woud get with a similar tube amp, and in fact less noise than my hi gain tubeys, which can also be dialed out with the NR circuit without damping the tone.
When set like the amp it " models" it sounds very good with less of the blanket-over-the-amp effect that some of the old Blue series had. Less flexibility than the blues regarding effects, but better tone overall from the models. I really like the extra crunch and warmth the EL84 gives it instead of the 12AX7.
Like all amps, moderation is key when setting it up. It will not replace my tube amps, but it is a very capable tone tool, and it only weighs 20lbs. It is monstrously loud if needed, or can be dialed way back without too much tone change. I used a bluetooth audio adapter and connected my Ipad with Moog synth app to the aux input and got a great and easy mix with the guitar, so I could use the synth and guitar simultaneously. All in all very flexible and I carry a guitar, foot controoler bag with cables and mike stand, and amp in two hands, one trip. A big plus when you are over 50...
This model is different from the other VTs though, but it is a great versatile amp for covers and jam nights.