Right out of the box, I was surprised at the quality feel of this power bank. For the price, I was kind of expecting a lightweight, sub par power bank, but absolutely not the case here. For me, the size is perfect and not too cumbersome but has a large enough solar panel to do a decent job of charging the unit. One full day in the sun give me a little over a quarter of a charge, which for this panel size, is very decent. The wireless charging capability works great and I’ve had zero problems getting my iPhone to connect. I honestly have no issues with this charger and seriously thinking about buying another one. Also the light is very bright and the clip with compass is just a bonus. For the price, you can’t go wrong here.