"Due to mobility difficulties a low threshold was clearly requested at sales/requirement definition stage. However, this requirement was not captured and was subsequently missed resulting in bi-fold doors being fitted that were not as originally requested. This was disappointing enough but a heated discussion with the MD made matters far worse with his unprofessional attitude towards a customer. I am therefore marking the installation as 3. That being said, the Origin bi-fold doors are very good quality and the installation team were excellent."