I was genuinely surprised when I saw the size of this charger - it's the most compact 65W charger I've found, and much cheaper than others that are twice the size. It works great; my laptop charges just as quickly as it does with the original charger. I've also used it to fast charge my phone and tablet, and it works just as well.
It's ideal for travelling, as it only takes up a third of the space of the original charger. Plus, the electrical pins fold in, reducing the size even further. I've only been using it for a few days, so time will tell if it's durable, but for now I'm very impressed and would highly recommend it.