These pans seem to be reasonably well made. Tefal is after all a reputable company. In use they heat up quickly but I don't think the heat is evenly distributed and it isn't retained for long. The detachable handle is good from a storage perspective and it attaches and detaches with minimum fuss but when using the 2 pans in this sample set at the same time, constantly interchanging the handle can be a bit of a nuisance. If you have limited storage space the full set is worth considering because of their stackability.