I received my chargemander a couple days ago and it meets every expectation for battery life and charging speed but my only problem is because I have a smaller phone (galaxy s5) I have to use the little rubber bumper and it really doesn't work well. It doesn't fit comfortably and falls out too easily. I've almost lost is a few times because of this. I suggest making the rubber piece to where it can slide into the top bumper and actually be attached to it and removable. Very simple and easy to execute. Other than that I love this thing.