Petrela, I bought two of those and a drop of water can fry one of those because the top is used for ventilation, and a drop of water caused one of mine to fry.
The other one is combined with the PV-10A, and it sounds good; primarily because SS mates good with CJ tube.
Since I have "all" high end in the listening room, if any of it goes bad and I can't fix it; I'll cross that bridge when I come to it.
I can't say enough good things about PrimaLuna, and I highly recommend it.