Hated the Rosalina track on MK7, but much easier to control. Retro really did deliver such a perfunctory installment for the 3ds in my opinion. Nice to look at - maybe I'll pop CH ER on and play the snow levels next month.
I skimmed through it - it looked fairly consistent with the last few. Some games with interesting concepts, most of which are doomed to get quietly released and subsequently buried in the eShop's unwieldy catacombs.
I've been holding off buying eShop games at the moment (most notably Sea Of Stars, which people are raving about) because I assume a Switch 2 - whenever it arrives - will not have the function to re-download them.