To each his own :) I go back and forth on turning TC on and off. The nice thing about BlogFire is that you can subscribe to as many feeds as you want in the app and enable/disable notifications on a per-feed basis. Then you can just use the app as a feed reader for the others.

There are a couple of ways baked into the app that should help spread it to people that don't use RSS readers. Being able to share posts from the app (with a link back to BlogFire) is one way.