Do you have 802.11ac adapter that works well?

Hello,
I am looking for an 802.11ac USB wifi adapter. I know that some adapters are physically better made than others (antenna quality etc) and of course some chipsets are better supported in Linux than others.

Do you have an 802.11ac adapter which works well for you in LE? If so, what model?

On the flip side, did you buy one which was terrible and should be avoided?

Thanks for any comments.