Literally no complaints, 10/10

Took 15 minutes to receive but worked great, went to https://office.com/setup and used the key on my account, works flawlessly.

Fantastic, works immediately!
Recommendation =)

I had an issue with the key delivery. Created a support ticket, case was solved within 5 minutes. Key worked fine.

I was a bit wary of purchasing, but I decided to try. I did not regret my decision. Using online activation, Office 2019 is activated successfully.