The google drive for Mac crashes a lot, and no matter how I adjust the settings often refuses to download the full remote system unless I click on the cloud icon next to the file name. They really want you to use a web browser, which I don’t like to do (prefer native apps, thanks).
Dropbox seems to have gotten it right, it seems. I guess that’s why they’re still in business even though their business is built around a feature, not otherwise a product.