I read this whole series (all the ones we had at the library anyway) over lunch. They're cute stories, but I thought they might have a little more substance to them. I still enjoyed the books. The illustrations are very cute. This one gets dramatic in the middle and I probably enjoyed it the most.
I also didn't look up their publish order beforehand so I kept starting one and then setting it aside because it referenced characters or past events I hadn't met or read about yet. There are some slight spoilers if you read certain books out of order.