How Soon Do You Realize You Don't Like a Piece of Gear?

You must give it time to break in. But in all honesty, unless you were looking to have a more analytical sound the move from tubes to solid state was probably not a good move. Also, in terms of sound quality (without regard to the sound family) I always increase the cost by 2x or it is likely to be lateral. 
 

I would recommend finding a used Audio Research Reference 3 phonostage. I think this would be a significant upgrade on all respects.

The H3000 is a high bar, especially if you’ve rolled the rectifier and tried alternative footers under the power supply. I’ve been running mine for a decade. The best rectifier I’ve found is the Riccardo Kron Anniv 5u4g. Many people like Stillpoints SS ultra footers, the smallish ones. But only under PS, which controls the overall sound to a shocking degree. They open up the highs but do compromise the midbass a bit. I just recently switched from them to CMS footers and the jury is still out.

All that said, I’ve been thinking about bringing in a transimpedance phono stage to supplement the Allnic, not replace it. Given your results, I think I won’t try the Grail. The new Mofi looks interesting.

FWIW, In my opinion, it's not so much a matter of tubes v transistors; it's more to do with current vs voltage drive. I say this because I own one fully ss phonolinepreamp and one that is mostly tubes, albeit with a hybrid input stage.  Both outperformed a high quality current driven phono stage in my system, to my ears of course.  The best voltage driven phono stages are now at a convergence where solid state and tubes ought not to be very different. Oddly, for me the current driven soiid state unit had some of the sterility I formerly associated with solid state, but no longer.  That was the difference for me.  It was also surprising that at full gain, the current driven unit added a bit of transistor hiss to the signal. Neither of the voltage driven units do that, even at the extremes of gain.  This is purely subjective, and based on one example of a "transimpedance" phono stage, albeit an expensive and highly regarded one.

Gear change are motivated by synergy before anything else...

It takes me few minutes to decide to return back a TOP tube amplifier costing way more than my Old Sansui alpha a S.S. design. And the TOP tube amplifier i returned back is not a trash design but one of the best there is at this price universally recognized as such. This is why i decided to upgrade my AKG K340 dedicated headphone amplification with this TOP tube headphone amplifier ( Berning ZOTL) .

But price tags or even improved design as the well done ZOTL does not replace synergy between pieces... Especially for the most picky and hard to drive headphone ever made..

More than that i tried for fun to drive my k340 since from a low cost but very well designed chinese S.S. headphone amplifier with a tube preamplifier (150 bucks for the two) and  they worked better to drive the K340 than the ZOTL because of synergy not because they are better than the ZOTL, they were not better but the vsynergy was way better ...( this  chinese system is used normally only for the K240 sextett (movies) and cannot beat my Sansui alpha with the K340 i used for music)

Is the TOP tube ZOTL amplifier one of the best for headphone i tried as upgrade faulty ?

Not at all , SYNERGY decide...Not price tag not even the design quality by itself but the quality of the coupling ...

By the way the K340 is the only working hybrid ever made with a dual acoustic chamber and when optimized cannot be beaten but it takes me 6 months to learn how to optimize it ...😊

Forget price tags, open your ears and pay attention to synergy...

Answer: When I get the credit card bill.