Me and some friends have played around with Roam a bit and we are baffled by the app. It just does not work well. It is a badly-designed, lower performance, glitchy note-taking app. You end up staring at its gaudy giant astrolabe loading spinner more often than not. We look at it and end up baffled why anyone would pay a monthly subscription for it!
This has not been my experience. I use it daily and after the initial load screen my graph is very responsive. They’ve fixed a lot of bugs since last year as well.