Eh, they're okay. I just look at it from a IP perspective; Google doesn't want you to really ever own anything and in my book that is a total no-go. I think people should put more thought into the corporate missions they are implicitly supporting by massive usage of a company's services. I don't use anything but emails hosted on institutional servers so I maintain control over my data. I don't use any cloud service that doesn't have a sync service so I always have a local hard copy. etc. etc.
I welcome our benevolent overlords at Google. I honestly don't care if they take over the whole damn world...I like at least the superficial image of Google and have no issue with supporting that. Yeah, maybe it's all PR, but how they choose to present/sell themselves still says something about a company.
I do use, but absolutely
hate OneDrive. I only use it because it's one of the default save locations on my computer, but I think it's honestly the stinking, rotting corpse of what used to be a steaming pile of excrement.
Dropbox is...fine. It's a bit clunky.
I like Google Drive because it syncs to all of my computers nicely, and I can share individual folders to people at my work, or other groups I am a part of.
Other than that, I really don't know what you mean...all of the services I use from Google are free, and don't involve anything that I would have
owned in the first place. I can download everything I put on Google, including emails. I've actually had MORE trouble with institutional servers because when you leave the institution, well...you'd better think of everything before your retrieval window closes.
