Our first review was quite negative because there were technical issues that weren't being addressed, but after the MD read the review, he did everything he could to help and sent a member of his tech team the same day to our home to sort things out. It turned out that there were two previously unknown issues which he sorted out and has kept details of them in case it happens elsewhere. So thank you for that, but is is a shame it had to go that far before we received help, but we understand that has been sorted out as well! It does seem that this technology is quite new and is constantly being developed and modified but I can't say I'm confident that it will work perfectly from now on! It's also quite a noisy unit and we are aware of it downstairs when the house is quiet.