Played it through! Got about half the endings (one with each girl except Marian, and the solo one).
Really enjoyed it. Very cute and organic; I felt like I was in an interactive story (I know, visual novel...) with some actual emotional depth and very sweet, touching pieces. The background music was excellent, the art was gorgeous, and all the girls are neat-o. Susana's not quite my cup of tea, but still very cute.
The only thing is I wish it had some sort of gallery to save some of the pictures you unlock as the story progresses, like the kiss scenes or some of the little portraits.
Minor quibble is that when replaying it a couple times for different endings, I wish the story for each girl had a few more unique things. (I am not quite sure I am explainign this correctly). Even though I enjoy each girl's unique ending, I wish there were a few more small stories/choices you could make based on other choices, like hooking Trent up with Marian after the 'what's wrong with liking older women?' comment, or encouraging Clara's hanger-on (Jacob?) to pursue Susana. Even though it gets told at the very end, I'd feel more complete if I played a bigger part in that.
All in all, I enjoyed this game very much and will be recommending it to friends.