who will set up your new TT? verify pivot distance and overhang is done right? check/verify all is well periodically? change optional headshell/cartridges or future MC stylus re-build? set tracking weight, azimuth, vta, anti-skate?
I strongly encourage you (everyone) to get the few tools and practice NOW until confident doing it yourself. Read your manual, the ability to adjust is there, they just assign the responsibility to the dealer.
arm height ’on the fly’, is very nice, but not needed, and you might find you are not comfortable with your steadiness in any case, I find features are one thing, but implementation varies, and that mixes with my unique physical steadiness. you can always raise the arm, adjust height a spec, check with mirror and perhaps a pair of mini-levels, ears
tool free arm height adjustment is a definite plus
I verify the tonearm is level when playing, to my ears, that's good enough, I don't seek perfection, I don't hear obvious differences nearly as much as I do when I refine azimuth, and I use the blank side LP method to see the actual force on the arm while listening to content with specific l/c/r imaging. Clearaudio's anti-skating, MM one turn, MC two turn of a screw is blind, I find no providing user adjustments insulting actually.