We was testing chanty in the free plan for few days before purchase de deal.
In general terms we are happy with the app, (Before my purchase team was working with trello and whatsapp).

just some things to note:
- I can confirm roles and permissions are available now in appsumo plan (Also allow me to hide email for non admin users).
- Video (one to one) and audio calls are not reliable, sóme times didnt work fine, hangs, or have bad audio video quality. (ended using whatsapp few times for this problems).
- We have limited storage, but admins can,t delete files from other users (will be nice admins can delete files from others users to free space).
- I miss option to format text (at least Bold, and bullet/lists).
- Tasks can be assigned only for one user at a time (will be nice to assign it for more than one like i do in trello).
- Tasks only allow to put a title, will be nice an option to add full description with formateable text, image and list/bullets, and keep this description pined in discussions).
-Android app dont allow me to see tasks in kanban view (only list view available in mobile).
- Desktop app (for mac) when i switch from different app, and want to type directly , i need to click exactly in text input area and then type, if make click in middle of the screen, and type, not work).

- Waiting for Zoom Integration and Google meet, also google calendar will be nice to have (i have readed that is pending google review only)

By the rest we are loving the app, obviously I miss the option to share screen, at least one to one in the appsumo plan.

Group Videocalls, with the integration in google meets or zoom is enough for me. I think that instead of having a group video call that works poorly, it is better to focus on other options and have a good integration with zoom / google meet (my opinion).