Depends on how well isolated your setup is ultimately. For me it’s just a precaution to isolate the table from vibrations butone of my speakers is also like a foot from the TT.
It looks pretty though and would probably compliment the white Haller and Lintons…
TLDR: probably not in any significant way but it looks pretty
My shelf (which is home made from a piece of my old butcher block counter and some industrial brackets I bought) did not cause immediately discernible audio improvements. It did prevent the skipping that happened from footfalls on my bouncy ass wood floors though.