best input so far is to auditionh whatever at home and be way more confident with your decision.
although, if the initial sound was not unattractive I doubt it will be unacceptable in your rig either.
the contrary or negative accolades tube gear acquires is way over stated and often an exaggeration of inherent tube characteristics.
as was said, is the inferred element of tube distortion bothersome? obtrusive? unplesant? or even noticeable?
or is it simply something comonly understood when characterizing tube designs which lingers in the back of one's mind?
at some point don't we have to use our two major tools in this hobby?
our ears, and good sense.
BTW, good sense is an 'acquired' taste, and usually quite bothersome when buying high end audio components.