To me....Tubes sound better pushed....so volume will be a issue.Even with lower wattage amps....Power brakes and power soaks work in lowering the overall volume but lets you still push the tubes and acheive that tube breakup we all love....but when using a power brake you also muffle the sweet tone you get pushing the tubes....especially at levels that won't disturb family members.......
I have played through but never owned one but a Fender Blues Junior is a great little amp.....I really liked the ones I played through but owned my Bassman head at the time and never had a use for one.
I have a Valvetrain 205...its 5 watts....Works great for me and I have used it in a fairly large worship service.our stage is mic'd and I play about 20 ft from the drummer so I have yet too mic' it.....Simple controls..just volume and tone....I have a pretty simple pedal board too....overdrive-reverb-tremolo....and it really a great setup.
I have now added a Vox Valvetronix to my setup and run them both......I am lovin' it......The Valvetronix responds like my old trusty Bassman head.....with pick attack and the volume knob I can set it up to whatever vibe I want and control everything from my Custom/D'lux.........
Here is a quick demo with just the Valvetrain 205 with some clean and dirty.....Neck pickup is a GFS Hot Liverpool Retrotron and bridge pickup is a GFS 62 Reissue.....