We use with our team gmail and dropbox, we have thousand of documents we could share via gmail dropbox addon, but the search via folder (looking into directories is way too long to make it efficient. So we prefer to upload files from pc. If was added to gmail addon a search bar (as google has with google drive extension) where we can search via keywords. it would be great.
This coupled with ability to choose more files in one time would make this addon fantastic!