At Realmac we went this route with Ember, but we built in a slight twist. We try and guide the customer so they can get help or make a feature request rather than leaving a review on the App Store that we can’t respond to. If they are unhappy or confused we want to know about it and help them, if they are happy they can let us know and perhaps more importantly leave a review.

(via Dan Counsell – Prompting for app reviews )