It's okay. My favorite was Quik banana flavored.
https://gamefaqs.gamespot.com/a/forum/a/a059111b.jpg
Vanilla is great, too. A couple weeks ago I tried some odd flavor of Nestles' bottled -- I can't even recall exactly what it was but it had caramel in it -- and that was pretty good.
Strawberry would be my least favorite, but still good.
Edit: Maybe it wasn't Nesquik. I know it had caramel in it but I can't find it online. Now this is going to bug me . . .