Bought this game for the Switch. Normally I'd wait for a PC version and play it with my 8Bitdo SNES gamepad, but it looks gorgeous on the Switch's screen, and it feels awfully appropriate considering The Dragon's Trap was both a Master System and Game Gear game, aka both a console and handheld title. The button-based d-pad is actually more than adequate for playing this game handheld as well, it's just the ergonomics aren't optimal. The gameplay itself has aged to mixed degrees, but it still holds up.
Also, switching between the visual styles from a single button press makes comparing the old and the new so easy and it makes appreciating the remake visuals easier as well - while the old visuals had their charm and comparing is fun in itself, the remake visuals add so much depth and detail to the world. Also, the fleshing out of certain "generic" rooms that were previously just a collection of blocks is utterly inspired.
LizardCube knocked this one out of the park. I hope they remake Wonder Boy: Monster Land as well, and I imagine HD art like this would suit other NES/SMS remakes as well.