Tubes amps are crude - they like silver wire.
Near field listening (in a treated room) will give you the best results.
For me - tubes behave well with jazz and classical.
Low watt amps (40 wpc) sound sweet at 85 db (nearfield)
Bias the amp yourself - it’s easy and boosts self esteem.
The amp will appear to sound different every time you turn it on.
Have a solid state rig for rock - loud listening.
Tubes are seasonal - they keep you warm on a cold night.
Tubes look sexy in a dark room.