Has anyboyd used this amp, your thoughts on it

If you want something that is cheap, has tubes in it, and has headphone jack, plus plenty of other functions (including bluetooth, optical, coaxial, and phono inputs!), go for Dayton Audio HTA100 (not the "HTA100BT which is the older model)

Granted, the tubes are in the preamp section, the power amp section is solid state class AB, but it's a very nice little amp with great build quality for the price and an incredible 5 years warranty! I bought one as a birthday present for a friend. There are quite a few reviews online.

I ended up getting this amp

I had a lot of suggestions on here and all were appreciated, but this kind of won out in the end, price, sound.

There is an old thread on this amp on Hi-Fi .org, like 38 pages, and there is a 16-page mod thread on it.  The overall talk was really good so i bought it.

I will say it sounds mean with the Chinese tubes, but when i upgraded to Jan 5670w and 2- 6jd8 buggle boy tubes, wow it woke up and sounded beautiful.  Now given its $250 price tag it's a steal IMO, it smokes my Little Dot Mark II.

I'm going to do the mods inside soon.  It drives my HD 6xx no problems and i can't go past 1 o'clock or it will blow my brains out.  It also makes a fantastic pre-amp, wow it's really good.  Anyway just a follow and thanks for all your help.