I've never been able to get seat alerts to work at all. The Android app works well for showing your flight information when you don't have data. And it does show flight changes pretty promptly if you do have data.

Unfortunately it seems like every update gets less and less useful. It used to show lots of information conveniently, now you have to page through multiple pages with each page showing only a minimal amount of information. Most of the screen is taken up by extraneous decorations and clutter.

The widget used to show everything you needed to know about the next flight, now it's only showing the time without the date and half the space is taken up by the tripit logo. The last release broke it even further making it a 4x2 widget even though it only needs 4x1 space.