I use Tapatalk only for the push notifications for when a post of mine was quoted, mentioned, or if I got a PM. The notifications usually work, sometimes it acts up and it doesn't show.
The other benefit is that you can directly attach photos without size limits (I personally don't use it for that).
That is the only thing I use it for. Which in my opinion is very important.
There is a mod for push notifications now but the forum I'm part of was made before that was made and won't be updated. And the general way that forum operates is it relies on quotes to indicate your replying to a person. That mod doesn't support choosing what to get notified for.