I like how easy it was to use, as well as all of its features! The customer service has been great too - they are always quick with responses or willing/able help you out if needed!! Nothing in particular at this time but we have not used everything yet so there may be some things missing from our experience thus far (such as being able for guests who don't know what an appletasaur looks likes).
We do love using Restaurant Manager though because now when someone orders something off their phone instead of calling us up directly about any questions etc., then my co-worker can answer right away without having me come over just bc he's closer than i am haha :).