surface pro 4 helloMatt Weinberger/Business InsiderMicrosoft Surface Pro 4.

For the past month or so, I’ve used an Apple MacBook Air, Lenovo Yoga Pro 2, Dell XPS 13, and, most recently, a Microsoft Surface Pro 4 — the tablet Microsoft says can replace your laptop.

I don’t know about that last part.

But when it comes to actually getting stuff done, I love using the Microsoft Surface Pro 4, which starts at $899, more than any other computer I’ve ever tried — including the MacBook Air.

Which is why it was so was heartbreaking when two consecutive Surface Pro 4 tablets died on me.

Here’s why I loved using the Surface Pro 4, and what went wrong.