I still have to read the full review, but on its final words Brett Howse explains clearly how everything in the Surface Pro 4 has raised the bars. The Type Cover is much better (keys and touchpad), the hardware is superb, and the execution is difficult to criticize.
But it is not cheap. At all. The “sweet spot” could be the SKU with the Core i5, 256GB SSD and 8GB RAM for $1299. That’s without the $129 Type Cover, of course. With that money you can find for sure other alternatives, but this is indeed a great machine:
If you are looking for a workhorse tablet that you can be productive on, I don’t think anyone else offers the build quality, performance, and accessories, compared to Surface.
Please have in mind that using this on your lap is not very comfy. The Surface Pro 4 and its predecessors are meant to be used on a table. If you plan to use it otherwise, consider other options.