Downloaded. I never played the GBA trilogy. Definitely want to play after I finish Harmony of Dissonance and will gladly await a good soundtrack after listening to Harmony of Dissonance's for only the 10 minutes I've played that game.
I played all of the DS Castlevanias (only really like Dawn though), so I am excited for Aria. Circle of the Moon was okay (just played it and beat it for the first time when it was released on VC), but some of the level design was really bad and the difficulty differences from one boss to the next was insanely unbalanced.
That said, the Metroidvania games aren't very good, in my opinion, outside of Symphony of the Night, which is the only Metroidvania that managed to capture any sort of mood or atmosphere. All of the other ones almost feel like weird Saturday Morning Cartoon spinoffs, if that makes sense. Crazy stupid stories, dumb overdramatic characters and character design, and laughably bad writing (Symphony of the Night had this, but that was mostly due to translation and the infamous voice acting).
None of them are even close to as good as the Classicvanias, but I still enjoy playing them.