I great book - my one year old reads it every night before bed.
She loves lifting the flaps and recognising the different characters. It's also a really good length for her age, not too long (so doesn't get boring), but has a proper story she can follow (so better than basic board books). And a great rhyming text. Rabbit has a range of facial expressions, which is rare for childrens characters. And the animals are not just the predictable dog and cat (there's a fox and tortoise too!)
I'm sure we'll still be reading this one this time next year!