These guys are awesome.
Had them out to look at the site & the sales guy was really helpful and found the perfect solution for us (and it was a hard site to fit as the roof spaces were really small so other people who had come out had not seemed overly optimistic that they could help us).
The unit they installed is still going strong in our building 2 years after installation and there has never been any problems. At one point we had our building rendered and needed the unit moved temporarily - we called up the sales office and they organised it immediately for us which I thought was great after-sales service.
Highly recommend this business - the Daikin units they sell are top of the range & top quality and their sales and post sales service is exceptional.