I think HM&R is a great re-introductory track & the production is fantastic. It's quite subtle and sets everything up nicely for the album & future singles.
I don't think it's a hit though (not that it matters but if she does intend to push something, this shouldn't be it) and I probably would've preferred abit more expression in her delivery. She should release the best track she has after this, we need something on the level of 212, 1991, Esta Noche. Dying to see the video though, she has amazing screen presence.
edit: it's nice to see her getting soooo much love across ATR, Twitter, Tumblr and all the forums. Must feel liberating for her to finally release something.
America gets it at midnight, that's what she tweeted.