Years of being dinged for ineffective and unresponsive customer service may be catching up to Comcast, which is finally responding with some much-needed tweaks. Charlie Herrin became its SVP of Customer Experience in September, bringing new features to the My Account app (iOS, Android) that track the progress of field technicians and now, arrange customer service call backs. The way it works, customers can initiate troubleshooting within the app, and if that doesn't work or doesn't apply, choose a convenient time for a rep to call them instead of wasting time sitting on hold. There's also an option to tweet for support as well, so whatever way you prefer works. Options like this have existed before, with phone prompts during periods of high call volume, but putting it in the app should make it easier for customers to monitor when their issue will be addressed without having to go through the phone tree in the first place.