Great product providing PD charging and a huge capacity, lasts for days charging phones and earbuds before it needs recharging. My one gripe is the physical size. Yes, it's a big capacity but I've got the Romoss 20,000 and although this one has only roughly 25% more capacity, the size is roughly 50% bigger which I didn't expect. It's quite a bit weightier as well but that's a small price to pay for such massive capacity. Not something you'd take out for the day or maybe even on a plane but for trips and travelling, it's fantastic.