I tested the MX Anywhere 2 with both Mac and Windows laptops. I like it a lot, though ergonomically speaking it isn't as comfortable to use as the MX Master. That said, it's about as comfortable as you can expect from a smallish mobile mouse that's designed to easily fit in the side pocket of your laptop bag. And it's a nice weight at 3.7 ounces (105 grams).
As you might expect from a high-end mouse, it has plenty of bells and whistles. Thanks to Logitech Darkﬁeld Laser technology, it works on just about any surface -- everything from a glass table to the Formica-style finish of my work desk.
It has an integrated rechargeable battery that's supposed to last up to 60 days on a single charge, which is almost double the battery life of the MX Master. You can continue using the mouse while charging with a Micro-USB cable, and just 1 minute of charging gives you 2 hours of usage. I wasn't able to precisely test battery life, but I haven't had to recharge it in the three weeks I've used it.