A beautiful set of bowls which I have gifted many times to new home owners. They're compact especially for small living spaces, such as is the case in London.
I own these myself too. My main gripes are as follows:
They do not withstand repeated dishwasher cleaning well at all. The colour will fade, scratch and go dull. They cannot be used with metal utensils or with hand mixers/whiskers/blenders as the non-resistant material quickly looks old and well worn.
I love the Joseph Joseph range normally. Though I find that sometimes they sacrifice functionality over aesthetics. I expect better for the price.
That said, if you're careful. You'll get a good few years use from them and many compliments.
I try to leave fair and honest reviews, as I myself, really appreciate a genuine review before I decide on my own purchases. Hope this review helps you decide whether this product is for you. If not, I am happy to answer more questions!