As someone who has been in the position of having to explain to my customers that our host went down, yes, they did understand, and because I had shown them through the years how hard I worked fir them not one expected a refund or anything. They knew that part of what they were paying me for was to fix these problems when the inevitably would come up. I'm not saying this will work for everyone, but I believe a lot of people are starting to understand the risks of doing business in the cloud, and the truth of the matter is, some patients is required.