Interesting. I guess it depends on your definition of "serious amount of data". Our entire accounting system is built on Google Sheets, including about ten thousand transactions in four currencies per financial year. The system summarises by country and cost centre, and has sheets that provide our current profit and loss, and nice things like all the fields in each of the tax forms we have to complete.
OK, we are a small organisation, but I'm happy to recommend Google Sheets to anyone but power users. If you are crunching a lot more data than this, then I certainly agree that using a browser-based spreadsheet is not optimal.
My experience with docs was closer to the parent's. Sheets was fun for having a quick platform to hack out a few things for internal use, but it struggled to remain snappy for our org of about 120 persons. For example we had to start strictly tracking all POs and requests for spending and at first the sheet operation we had was okay, but it suffered once the entire department got to using it.
The admin panel was also horribly slow and just was a pain to work with, especially once we became the target of a long running phishing attack and would have dozens of accounts locked out every day. It was easily a 30 minute process to restore access to cleaned accounts since the panel at the time (2012-2016) didn't have a way of mass management of users.
It's sad I'm being downvoted for speaking about our experience using Google. I work for a major Australian company and we dove right into Google. I'm not entirely negative about it, lots of it is great, but there are still significant gaps.
His comment is relevant as to how would a new product be perceived through the experience had with other products offered by the same company.
Your comment is/was not necessarily relevant to the more political issue of being forcibly removed from having access to your data with absolutely no way of recovering it.
I think you're just being downvoted for being off-topic. This part of the thread's about how trustworthy Google is as a host, and the likelihood of being locked out of your account for some arcane reason, and a discussion of the merits and flaws of their products doesn't fit in smoothly.
Google Docs is OK, but Google Sheets is abysmal for any serious amount of data. It seems very hard to have Google listen to our concerns.