I have been very lucky over the years with the things I have bought from various manufacturers in that there have been few problems. Other people have not been so lucky, and it is your right to criticise manufacturers who supply you with shoddy or unsuitable goods. You may also want to complain about the running qualities of a particular model or the fact that it's not much like the prototype it's supposed to represent. Complain all you like here but please keep away from totally unsuitable, unhelpful, and possibly slanderous remarks. Please try not to put me in a position where I have to modify, or even delete the remarks you make.