First and foremost, I'm very impressed with the customer service this company provides, they have always responded to any issues immediately and made sure I was satisfied. I think they are a smaller company and I really would rather support a small company vs. apple who charges 3-4 times the price for a case that doesn't even have the same amount of power.I love this case because of the peace of mind it offers. I get a full charge and a half out of the case, so I know when I leave the house I won't have to search for a charger or bring a cord and external battery pack with me. One should know that the case is a bit thick (comparable to the apple charging case) and adds weight, but I actually like the extra weight as it makes the phone less likely to slip through your fingers.Paired with a screen glass the case offers great drop protection too, however I'm not sure that is one of their claims. The apple case does not allow you to control the battery usage, so once it's spent that's it, whereas this case gives you the control to power on or off the case, just as if you were plugging it in to an outlet. Case charges relatively fast, I recommend using a higher power 10v charger, to ensure that both your phone and the case get fully charged overnight.Couldn't be happier with this purchase, great value, great performance, great customer service...can't go wrong!