I don't have any creaks by my speaker, only if I press on it hard there's a slight creak.
BTW if you register your phone on the LG Canada site, they are giving away 500 Quick Circle snap cases.
Mine came in about a week. Even though I have another case for it.
Based on my usage, I'm getting ~36 hrs of battery life per charge., where my Nexus 4 would be at 10% after 15hrs.