I had some problems with activation, but got excellent help from support and solved issue.
Support response time is fast (within few minutes)

Key works perfectly, downloaded direct from Microsoft and it tied my account no problems.

Received soon after payment. Key worked perfectly. Binds on ms account. Thanks.

Seemed to good to be true. Well it wasn't. Absolutely brilliant!

It actually works, it is binded to my personal account and it is marked as legit/licensed product. Thanks.