Remember Me was one of the most heartfelt movies I've see. The ending was unexpected, of course, but I loved the twist at the end. Personally, i am not a fan of "happily ever after films" because I don't think they play on screen to be realistic at all. I walked out of the theater still thinking about the movie, how everything pulled at my heart strings. The acting by the entire cast was amazing. The direction, the writing, everything. There is so much chemistry with all the characters and it was so natural.
Do me a favor and ignore critics. They are paid to hate the good movies and love the not so good stuff. Go see this movie! It is well worth your dollars.