I've stated this before, after the novelty wore off with my tubes, I came to the conclusion that I don't really hear any difference in my Tube Amp vs SS - but that is just me.
In fact I changed out the whole complement of 10 OEM tubes with a different brand & heard no appreciable difference. According to all of the tube experts out there, I should have. I was was expecting quite a change in sound signature but it didn't happen in my system or my ears. Changed back to the OEMs & I'm storing the new ones until the OEMs eventually fail.
Having said all that, I really do luv the imposing presence of the Tube Amp in my room - it really looks cool (especially when glowing in the dark). I highly recommend dabbling in this facet of this pastime for music listening...