Paying for Dropbox but now filling up my Google Drive...

I use Dropbox as my main drive for my academic research. I want to be able to write articles in Google Docs (so I can use Grammarly and other plug-ins) without having them take up the limited space in my Google Drive. 

 

Now I'm paying for Dropbox, but increasingly, my Dropbox is increasingly full of weblinks to Google Docs. As a result, I am rapidly filling up my Google Drive. If Dropbox's goal was to drive me to abandon Dropbox and just upgrade my Google Drive, they succeeded.

Have others left Dropbox for Google Drive? What has your experience been like? Are there downsides I'm not seeing?