I really enjoyed it, there's a demo if you want to try before you buy it.
The meme-ish nature, and ann-ee-may-ness was a bit off-putting at times (and even more off-putting in retrospect) but I managed to avoid the hype, went into it completely blind and was pleasantly surprised.
I dunno how well I would've received it if I didn't have a deep nostalgia for Earthbound, easter eggs and enjoying shmups.