I saw this at an almost empty National Media Picturehouse (8 people, 2 of whom left about 20 minutes before the end). The reviews had been mixed, but I absolutely loved it.
Been through a similar situation myself (a universal experience), and this story rang true, with some great performances. And, it was just so Italian. It had depth, and also a series of events/stories woven throughout. There is a twist at the end - not a Sixth Sense type, much more subtle, end just added a little more depth and warmth.
It is slow, but it just seemed so right...