I like how the battery and back plate is removable and replaceable. Coming from a Samsung S3, it is just fantastic that LG has customizable bottom bar. Another thing is that the UI doesn't seem as locked-down as Samsung's trash with TouchWiz when I first got my S3. I can't even attempt to multitask with my S3 and this G3 may convince me to try it again.
I will also enjoy using this as a hand warmer during the winter!