The Sky Blues midfielder was delighted with the display at the Den...
Coventry City midfielder Jim O'Brien hailed the 4-0 win over Milwall at the New Den as a "special day."
O'Brien netted the fourth goal late on to round off a remarkable Sky Blues display, when he played a neat one-two with Marcus Tudgay and hammered in from inside the area.
The 27-year old was as industrious as ever and also praised Lee Burge after his early penalty save, adding that there was only one team in the game from that point.
"I thought it would be a tough day, particularly conceding a penalty early on," Burge said.
"Burgey kept us in the game and from then on there was only one team in it.
"We expected them to be direct and they have decent players, but we were up for the fight as well as the football.
"It was nice to get a goal, it was a great one-two with Tuggy and it was what we thoroughly deserved.
"We have to remain focussed, but it was a great performance, every link in the chain worked and it was a special day today, as well as last week!"
The game saw Ruben Lameiras net his first goal for the Sky Blues and Adam Armstrong score twice, including an unbelievable lob from 35-yards.
O'Brien was pleased with the front men's contribution and is hopeful they can keep up their excellent form from the opening games.
The Scot added: "I wasn't aware of Adam's ability before he came here.
"Obviously he's come from a big club so he's a technically gifted player who works his socks as well. It's not easy but he has been great so far.
"He plays the role really well and he's got four goals in two games, Ruben and James also put in a great shift and as long as they keep that going then that's great for us.
"I think the most important thing for them is when we don't have the ball as a team they need to react and I think they've done it superbly. Hopefully we can all keep it up."