Has anyboyd used this amp, your thoughts on it

If you don’t mind DIY I’d give Elekit a look. The 8600 is a decent 300B set and the headphone output is ok I hear (I’m not a headphone guy so can’t verify myself). 
 

it’s got enough power to drive a reasonable efficient speaker (90+ dB/W/m) to reasonable listening levels

I heard Glow amp running Audio Note speakers at a show a number of years back.   Glad to see they are still around.   Have almost pulled the trigger on several occasions just to have a nice good sounding and affordable tube amp to play around with.  I am a Glow fan!  

I love DIY I would love to build my own I've heard of those kits before I'll have to take a look at that and do some research on that.

Does the R8 have a headphone jack?

I can't see ebay from work but ignore the unformed comments about too small.  

I am currently using a 2 wpc SE84 tube amp to drive my 140 lb floor standers.  It is all about the sensitivity of your speakers.

how about the Dayton Audio HTA200 amp? I've read much about it and seen much praise for it.