person A: Hi_comma_ yesterday_comma_ I was very positively suprissed by the work done by a coworker.
person B: Thats good news! What did they do to surprise you? 
person A: 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.
person B: Amazing_comma_ Im happy for you. :) 