I agree. It is unstable and at 2000 hrs BST was giving the error message - probably all the US traffic overloads it. Hoever, I think that it is a privilege to have access to such information and it is most useful in trying to book upgrade awards. That said I had to go blind when the system crashed for some time in June (I think) - and one has to work out when it is likely to be on or not. One just has to be aware that it cannot and should not be relied on 100%
I thank Matthias for all his work which has certainly made life very helpful.