We use Smartsheet in our IT dept. for a few months now. 13 licensed people at this moment, especially to manage projects/tasks, in EMEA, China and US and we like to expand. Everyone was very enthusiastic in the first weeks, but the biggest problem is: row sharing.
We work with external consultants a lot and we want them to work in one ore multiple reports to update tasks. Since they need access to all the sheets mentioned in the report (including other internal and confidential information) we are forced to create separate sheets for externals with only the rows needed for them. We have to copy/paste row information, dates, hours, duplicate discussions and attachments etc. It consumes a lot of time to keep everything in sync.. 
I see comments like this often in the Smartsheet Community : how to share certain rows with a few people instead of the complete sheet. (Send Update Request is not user friendly for this..)
Is there any light at the end of this tunnel?