Bought this set after getting rid of a 20 year Corelle set. Quality seems pretty consistant and I don't see myself having to replace these anytime soon.
These hardly ever chip, stain, scratch or break and weigh considerably less than your standard dinnerware set. The mugs themselves aren't Corelle and are made in China rather than the USA and are pretty generic.
Also you don't get any plastic lids for microwaving the bowls which is a bit of a shame since they're expensive to buy seperately, but I still have my old ones so I'm ok for them.
For £40 regardless of the cups and lack of plastic lids, I consider this an excellent deal.