Jolida Foz SS-X Tube buffer & soundstage expander?

http://www.enjoythemusic.com/magazine/equipment/0917/Jolida_Foz_SSX_Sound_Stage_Expander_Review.htm

I just read this review this past weekend and became very intrigued. So intrigued I purchased today.  Seems to me its a very inexpensive sound stage/bass tweak for those of us....audio purists please don't hate me... that live and die by tone-bass-treble -loudness-low cut-knobs. And these knobs, thankfully, are still found out there (ie:Luxman) to personalize our sound.  My room is a non ideal 9 ft high - 13 wide by 20 long rectangle of potential acoustic issues. ( Yes -I have treatments) I'll take a potentially widened sound stage and warmer sound anyway I can get it!
If folks swear by interconnects-speaker cable-and other factors influencing their tone and sound field depth then why not this little unit? 
IN fact, I'm amazed no one has thought of it before.

BTW: I run TIDAL MQA via pc coax to Marantz NA7004 DAC feeding Parasound 2100 new classic preamplifier into either Parasound A21 SS or a Prima Luna Prologue 5.
I have Tekton Lore and Zu Omen DW towers that both bring immediacy to songs sometimes I wish to warm up. I am planning on running this Jolida Foz between pre and the amp. I will report back what I hear.  Who knows, if this works, maybe it could be added into future preamps or integrateds?

I will be putting it thru its paces this weekend. Let me know if you see it referenced anywhere else!

My report on this unit so far:

1- definitely adds (as in the recent ETM review) that "dollop of bass" without screwing up the entire lower spectrum. I like a full sound and usually go close to 80% of max on my tone controls.

http://www.enjoythemusic.com/magazine/equipment/0917/Jolida_Foz_SSX_Sound_Stage_Expander_Review.htm

For demo-May I suggest the EAGLES MQA Hotel California track for an example of what I am talking about. The units bass adjustment is perfect for filling in that side of the spectrum -especially at lower listening levels. I now can dial back a little on my SS pre bass level.

2-The sound stage expander feature actually surprised me-I ended up liking it more narrow and not broad like I had assumed. I have it all the way left(narrow). This feature should help those with narrow rooms or larger areas in need of tweaking.

3-The best feature without a doubt is the tube input stage. I put this unit between my SS Parasound PHP-850 pre and A21 SS amp. It just puts meat on the music and mimics a tube like fullness to my system. No other way to say it. I just cannot imagine some of the mid fi guys adding this type of feature set to future preamps or integrateds. You get to take a nice fidelity jump for very little $$

So my call is thumbs up for the money. Just an EASY and budget minded unit for noticeable sound quality improvement for those of us usually on the outside looking in at the upper echelon of hifi toys.