Pretty much great in every sense.

From a launch perspective: I had a mailing list of 1600 people built up before launch thanks to getting mentioned on places like Buzzfeed, BetaList etc

From a skills perspective: I already had some (though very limited) app marketing experience but when launch came around I had spoken to so many journalists that I knew

1) where I wanted to get mentioned 2) how to communicate what the app is about (something I struggled with A LOT at the start).

From a day-to-day perspective: great too as it added a nice variety to my week.