Has anyboyd used this amp, your thoughts on it

I appreciate everybody's input a lot of choices obviously I actually bought a it's a 708 B headphone/ preamp.  What I'm looking for is now some help with E88CC tubes anybody here have any experience with these tubes I'm looking for some good sounding models RCA Mullard anybody have any experience with these?

Read the sound description at Brent Jesse. My personal preference is all nos stuff. My favorite is Tekefunken, Tungsram, Seimens, Ei. American tubes are 6922, Phillips, Rca, etc. The various Russian tubes are nice too. Personally I dislike Mullard , but others love them. The bottom line is you’ll have to try some. Maybe I’ll see you at a Tube Addicts Anonymous Meeting, it’s a vicious disease. 😆 Happy hunting , Mike. 

I will see you at the Tube Addicts meeting ha ha.  What you said though, the Tekefunken name keeps coming up and Seimens, there pricey tubes.  Thanks for you input.

I am very happy with my Willsenton 300b integrated amp, with a headphone Jack and 8 wpc.  It cost $1500.  As good as it is, I will upgrade the caps when it comes off warranty.  Even stock, it is a dandy amp, with a fit and finish that belies its modest cost.  

So the headphone output is good on the Wilsenton ?