First off, it has some bugs specially in the apps, quite a few actually. FORGET THAT AND BUY IT!

Ora is a winner. It's a solid well-designed project management and collaboration tool. The UI is slick and modern, all its features work together harmoneously, and has some quite neat set of productivity spices

The Ora team are nice and responsive, support is considerably fast albeit being in the middle of a campaign

I was relying heavily on Slack to manage my team. I'm whole heartedly replacing it with Ora, just waiting for the chat features in the mobile app to get released, as it is quite a core features

I trust Ora team. They've been around for at least 6 or 7 years of ongoing development and improvement. That's why I'm not concerned about the (many) bugs I found both in iPhone and macOS apps. I trust they'll not let us down (you are reading this, Nikolay, aren't you? 😉)

Stack all the way up, or as much as you need in the future. I beleive it's a great invesmtent