The ability for all of our team (pastors, choir directors etc) in one place so that we can make donations easy through paypal or credit card in addition to having access to member information is really great! I wish there was more integration with LinkedIn as well, but it's good enough for now.
We're making some pretty cool things happen at our church using smartchurch! Check them out if you are looking for an integrated donation platform. It has made moving forward so much easier than doing this on paper alone.