For me this comment from the 'review' is completely ridiculous: "While the Px8s measure far better than the lower priced Bowers & Wilkins Px7s, they are more like the T+As in terms of total bass (meaning controlled but not overly bassy) which is good." Wrong. The bass of the B&W PX8 is, in fact, bloated and sometimes boomy, always affecting the midrange, and is completely different from the very accurate, tight and clean bass of the ST.
Although we may all agree or disagree on points of difference, I do not exactly disagree with the reviewer's experience on this specific point, despite the fact that I do not agree with them (and thus I agree with you @angelom).
How can that be?
That is due to how we all perceive music, so for them, if they perceived the PX8 bass as balanced, and as they mentioned other headphones to show context, then though I disagree with that point, I still respect their opinion in what they are hearing.
However, I do not think that the B&W PX8 has balanced bass, whereas the Sony WH-1000XM5 is more balanced than the PX8 in my opinion.
Yet, outside of this outlier, much of what the reviewer experienced with the Solitaire T is close to my own experiences.
Recently, I had an almost religious moment listening to Black Sabbath by Black Sabbath (2012, SACD, JP Sanctuary UIGY-9094) and Machine Head by Deep Purple (2001, SACD, JP WPCR 14166) (both albums are SACD's in DSD64 format) via the T+A Solitaire T and FiiO M17 balanced. On these recordings, the bass response was near PERFECT, with immense detail of the drumplay and screeching guitar riffs, whilst the vocals had me in goosebumps on realism!
However, on hotter recordings or some modern RnB music, such as Renaissance by Beyoncé (2003, 24 bit/44.1 kHz, Parkwood Entertainment), which is closer more RnB mixed with disco and ballroom, the bass response via the Solitaire T is just slightly lower than what I wish for, and here a few dB increase on sub-bass and bass (but not upper-bass) would satisfy my cravings.
Even so, bass from tracks such as the track Slow Me Down from the album Path of the Planes by Soara (2011) (Spotify, Tidal, YouTube Music) has incredible bass depth and grip that the Solitaire T execute masterfully.
I think this is where I should employ my Meze Audio 99 Classics in balanced on recordings where I want a bit more bass fun, but those are fewer than my want to experience music via the T+A Solitaire T!
I find goosebumps always to be an excellent indicator, if not the best...

