Velux good but let down by sub contract delivery courier Evri. Had to contact them as they said couldn’t deliver even though we were in at the time they claimed they called. Spoke to Velux to advise at the time in case further problem. Now delivered.
Net Promoter Score is a loyalty metric used as a KPI for customer experience, measured on a scale of -100 to +100.
To calculate the NPS, we first ask customers to answer the question "How likely is it that you would recommend this company to a friend or colleague?" on a scale of 0 - 10.
Customers who answer 0 - 6 are Detractors, 7 - 8 are Passives and 9 - 10 are Promoters. The NPS is the sum of % of Promoters - % Detractors.