Anker has not once failed me yet since buying all manners of their products. Mainly just 3 of these chargers and then a few USB cables as well to go with (which I might add, the braided ones are amazing quality)Despite what others may have said about this charger being "slow to charge" compared to other ones, as I recall seeing, I've only been impressed by it. Yeah it might not be as lightning fast as some of the newest stuff on the market, but for what its worth its saved my friends' phone batteries on more than one occassion. In about 30 minutes I've gotten about 30% charge out of it when using its battery bank/storage charge, and they have quite some capacity. It is true they are able to only charge an average phone about 1 or 2 times if you're lucky off its internal power bank, but if you actually need to charge your phone more than that in a single day then I have to wonder what you're even doing that takes that much power.As for its traditional function as a charger from an outlet, I will admit I haven't used it much (cus my desk sits by an outlet and I just plug my phone in to something already there rather than use up more space) but the few times I have needed to, its been useful. As a college student I once had a time where I was at the start of class and only had about 12% battery left on my phone. Luckily was by the wall outlet in the room so after an hour of charging it was already back to 70% or so.For anyone who travels a lot as well, this is perfect. Having just a single charger that can support 2 devices (useful if travelling with someone and you both forget to charge your phone lol) as well as a battery bank that does a good job at quickly charging a phone up to full in emergency is REALLY a quality of life that many overlook. I ended up loosing the first one of these I got at a rave during a convention I went to. After that, I was conscious to keep my phone charged each night, and thankfully it was on the last night before heading home, though a 2 USB port charger + backup battery really just eliminates any worry i might have of ever being somewhere with a phone that wont work. Its a small thing to pay attention to and we all do it, but this PowerCore Fusion really is made for those who travel.If you're wondering about the size, its a bit bulky but does NOT cover more than one outlet. And in the case that it does, generally this isnt a problem because of the two charging ports. Just plug in your friend's phone and tell them not to worry.And if you're wondering what my phone is, its a Moto G4, for reference. Pretty basic and budget of a good phone, but holds its own well. My friend I've talked about uses a Nexus 6 and of course I've used this on plenty other devices too.As far as durability goes. Also 5 star. Dropped this thing on concrete and tile from above waist height twice and it didnt even show a single sign of problems. This thing is more likely to break the concrete than itself lol. Speaking of that, it IS a bit heavy, but reasonably so for how much is packed into the small thing. Its smaller than my phone, but about twice and thick, to give an idea of the size. Alternatively just use the USB ports as reference lolI could go on more but really the only thing I'd advise is to make sure you also have, or pickup, is cables for Micro-USB, USB-TypeC, and Thunderbolt to cover pretty much all the bases in terms of what phones you may end up needing to charge. I ended up getting a spare of the cables I dont use just for the sake of when my friends forget to pack their charger. I kinda have become Batman's utility belt at this point :pAnyways if you're thinking of buying this, for the price of $25 or so this is definitely worth it. After losing my one at the Rave, I bought TWO once I got home because of how useful they are to have. The lower price might only be for Amazon Prime members only, it seems, so I dont know if I'd shell out $50 on a single one of these, but at the reduced price its more than reasonable. When I say its pretty much the only charger I'm ever buying, I really mean that. Until someone shows me something that can out perform this in terms of battery storage, charging ports, and portability, for the same price and reliability, I'm forever sold!Props to Anker for ensuring such high quality product.Also they come with little mesh carrying bags and a small micro-USB cable for them. Really nifty!Pic attached shows the ones I got and the bonus things it comes with.