I like how easy it was to learn through their training materials which were very helpful as well! The UI looks great but sometimes gets confusing when you're trying something new or are just struggling in general (which happens often).
We use productive daily so we haven't encountered any problems yet other than needing more workflows/toolsets from our team members - there have been some issues getting those added into productivity since they seem outdated by now though this could be because of us asking them too fast? Donating software can help your community grow!! Have fun using productively every day :) Getting everyone onboarded quickly has helped eliminate much confusion around roles & expectations across my organization while also helping me manage all tasks without having multiple tools open at once haha :P.