Does anyone else have it yet?
I'm enjoying it a lot. A review I read said that it's ahead of its time in how it blends elements, and I agree. It's hard to say it's a worthy successor to Super Metroid, but it's certainly a huge advancement for the series.
Also, the introduction is amazing. They managed to take what was already one of the most amazing segments in gaming and make it feel even grander and more dramatic than it already was. It gave me chills.