I got a Lifeproof case for my girlfriends iphone.. she likes it. I thought it might be a pain in the ass unscrewing the plug on the bottom and attaching an adapter to use earphones, but she doesn't mind at all and she listened to music all the time. Very well designed otherwise and very very slim for what it is. She has only dropped it 4 feet or so, no problem. She has also spoken to me while she's showering and no issues there either. Keep in mind the manufacturers claim it can withstand much more.
Personally, if I used my phone as much as she does to listen to music, I'd probably get annoyed with having to unscrew the bottom and screw in the adapter to plug my earphones in (perhaps a testament to my laziness). If you rarely use ear/headphones, being a third party user, I'd definitely recommend it for a very slim shock/waterproof iphone case.
For what it's worth, I asked her to let me throw her phone against a wall. She refused. If I manage to convince her or be in a room alone with her phone, I'll post an update.
Last edited by tdn; 10-19-2013 at 10:02 AM.