You say fully 100% uptime on shared hosting huh?There are no real unlimited hosting , every hosting have their limit if not your share hosting will face down cause of other selfish neighbor over use.
For me ,
I will look for the real 100 % uptime , professional technical support, friendly customer support and reasonable price.
I wouldn't really accept that either. The technique like NAS (Used in most of the cloud) isn't 100% uptime proof yet. Theoretically yes, practically, no. But yes, there are higher possibility you would get better uptime with Cloud, but a guaranteed 100%? No.There are 99.9% uptime, and only cloud hosting can do 100% uptime, and it is expensive.