GREAT! Well, at first...
...but now that I’ve had it for a year or so, one of the USB-A 3.0 ports has stopped working and the display NEVER turns off. I only have used it maybe a dozen times.
It looks great and holds a lot of charge (enough to nearly, completely recharge my laptop one time), but I got this thing to be able to power two devices at a time. Also, the USB-C port is only rated to charge the battery, not plug devices into.
Would not recommend to a friend.