I don't see any basis for thinking it will be unreliable or that there will be any speed issues. I'm sure that Google can handle most people's home broadband speeds.
And it's hardly rocket science when it comes to a service, it's just online storage. 99% people will just want a folder on their PC and an app for their phone/tablet.
You are missing my point. People seem to be rating these types of services, based on the posts I have seen, solely on the amount of free space given while not considering other factors like ease of use etc.
Yes it is not "rocket science" but companies have screwed up simple ideas before so it could happen with cloud storage systems as well. An example would be having 100GB of storage but the connection speeds being pish. I would rather have a service with 5GB which was lightning quick.

Will have a new mobile by then though so not too much of an issue 
