It was a rather sweet ending, but as many have said, I think it was too sugar coated. I mean, it was just so perfect that it didn't seem realistic! And she could've made it at least a little longer, maybe set a scene at Hogwarts so we would know what happened there too. She left quite a few questions for the readers, in my opinion. Though I don't really have any problem with the naming, I think she could have included the kids' full names to clear confusion. And for reference, James' full name is James Sirius Potter.