I use it every day, but there's always some aspect of its behaviour that it turns out I didn't understand the first time round. Perhaps that's because I jumped into the project with only a very rudimentary understanding of Om, just enough to complete a certain ticket. I've since then spent a lot of time going through the docs, but it just conceptually doesn't sit well with my brain. Sorry I can't give a more useful answer. Reagent on the other hand, which I haven't used in production, just "feels" better every time I play with it.

The thing that helped my understanding most was a recent project where I got to work with React directly. Also, reading the source.

So yes, it's mostly because I'm a little lazy, but Reagent doesn't seem to punish me for that same laziness. 😆

EDIT: More details.