I'm not far into it - I've done the first two dungeons and I'm in the prairie. Just a few thoughts and queries the community here might want to chime in on or might be able to help with.
Firstly, as much praise as the visuals have had, the sound design is my favourite aspect of this game's presentation. The birds singing, the clacking of the Weathercock, the clunk of Link's shield as he blocks an attack, the shuffle and scuff of his feet, the swipe of his sword, the sway of grass in the breeze, Marin singing - it's glorious. Add to that the rearranged music that's nearly brought me to tears at times, and I'm surprised more reviewers didn't praise the aural experience you get with this remake. I love that the power-up theme is the same ditty as the GameBoy, though.
On the musical front, maybe somebody with a more musical inclination than me can clear this up - does the Mabe village theme cycle through the different instruments you collect in-game? It sounded that way to me - not necessarily one at a time, but a different collection of the instruments throughout.
Secondly, frame rate drops are noticeable for me, but not especially problematic. I had bigger problems with the drops in the Wii U version of Breath of the Wild, so I'm not surprised many reviewers didn't make a big deal about it. A shame for people who do have serious issues, and it is something I hope Nintendo improve.
Relatedly, a couple of life improvements I'd like to see - Roc's Feather mapped to the 'A' button, so there's a dedicated jump button when 'A' isn't used for context-sensitive commands like lift or speak, leaving X & Y clear for other items at all times. I'm happy with analog movement, but d-pad movement as an option would also be good. Some room to remap or swap control schemes would also be good - being able to swap sprint and jump made a big difference for me in BotW.
Finally, I'd genuinely love to see the Oracle games in this style. Alternatively, a new game with this kind of visual and aural presentation and improved performance would be good. We could then get a top-down Zelda without the design limitations imposed on it by being a GameBoy remake - as much as I love it, it's exciting to think about what Nintendo's designers could achieve with the freedom available to them on Switch.
Overall, though, I'm in love with this remake.