Good customer service, responding to pre purchase queries in a timely manner. The price when ordering was generally clear, except I ordered two kits and did not realise there would be a discount for two kits. This could have been mentioned up front. The technical specs are again generally clear, except it would help to have a greater explanation of the the differing functionality between options ( eg the controller) to aid ordering. Delivery occurred in the timeframe specified. Installation was relatively straightforward, using the clear instruction booklet provided. So far our usage has been limited, but initial indications are very encouraging.