It's the latest variant of Nescafé's ready-to-drink coffee in a tetra pack.
This one has a good, pronounced coffee flavor that's been mixed into creamy milk. The "condensed milk" taste mentioned on the label however is nonexistent.
Save for the slight sugar stickiness at the end of every sip, this drink is OK.
Funny though that this drink is called café au lait when it contains no hot milk.
Try it and judge for yourself.