Did you read our Surface Book review? We know quite a few of you did -- this turned out to be one of the most popular reviews Engadget has run all entire year. That said, in case you missed it, here's a quick recap: Despite the fact that this was Microsoft's very first attempt at crafting a proper laptop, it actually got most things right. The device's magnesium case and snake-like "Fulcrum" hinge give the Surface Book a premium but distinctive look. The keyboard and trackpad are both comfortable to use. Performance is fast, with some specs you won't find on most other 13-inch laptops in this weight class. Battery life is insanely long -- up to 14 hours in our tests. What's more, when you detach the 13.5-inch screen, it becomes an impossibly light 1.6-pound tablet, and the included pen works well too.