Prompt and efficient. Love it when people know their product and just get on with it. The poor bloke who did our install had his work cut out for him with the install in our 11 foot ceilings above the stairwell but he didn't flinch and just got on with it. Really appreciated that he cleaned up after himself. Product wise very happy with the light that comes through the "light' now. I was worried about the heat coming through but I was assured that it would only be the light no heat and they were indeed correct. It's great as on a hot day I can have the curtains drawn to block out the heat and yet the skylight still lets in enough light not to need electric lights. Very pleased.