I have been using a Denby Fire set as my day to day service for about 8 years - no chips etc.
Have the Blue Imperial set as a formal service about 10 years old - no chips etc.
Have some 70s Denby soup bowls with lids - used weekly - no chips etc.
BUT... bought the newish Halo range as a breakfast set - chips within two months.... so, beware, the Halo range is nowhere near as robust as the traditional older stuff and we are not that tough on how we use them.
thanks for that. love the blue imperial set. a real classic