Re: 10 out of 10 shishas
The rating scale is messed up... for some people, a 7 is average, whilst for others it means close to perfection. Keep in mind many people won't rate above 9 because, like bradedup said, there's always room for improvement. You might rate something a 10 today and tomorrow you'll smoke something that'll trump it completely.
tl;dr there should be a universal rating scale