I picked up the Valentine's Bear (http://brickset.com/sets/40085-1/LEGO-Valentine) a few months back. I just built the Easter Bunny (http://brickset.com/sets/40086-1/LEGO-Easter) today. And I really enjoyed both of them. I really like how they use simple basic parts to make very detailed and recognizable and cute models.
I hope Lego will continue to produce these for other holidays. I'd hate to see such cool ideas end after only two sets. Please make more.