Great looks, intuitive design, nice name
Integrations are very meager
The hard thing I find, is that Sunsama almost is useless if you use different services than they currently integrate. With the massive amount of tools and services that are offered online, I wonder if there's a user they can actually find fitting to their use case.
In my workflow, I need JIRA, Asana, Trello, Meistertask, Apple reminders and culturedcode things to be integrated, to pull all my tasks into one platform. Currently Apple calendar / fantastical do an OK job on that, Sunsama just simply isn't cutting.
Oh and the lack of two way sync for some things made me stop using it, sorry guys!