I was very positively suprissed by the work done by a coworker.
Hi, yesterday, I was very positively suprissed by the work done by a coworker.
user
Thats good news! What did they do to surprise you? 
assistant
He is realised a full project on his own and have used all IT best pratices for this project in very short period of time. He is very skilled.
user
Amazing, Im happy for you. :) 
assistant