Despite getting regular praise from manager Steve Evans and most Millers fans, Revell, signed in 2011 after Adam Le Fondre was sold to Reading, has found it tougher to win over a certain section of supporters who show concern at his lack of goals.
But after receiving a long-term contract at the end of last season, Revell has once again proved his worth to the Millers and is now playing with confidence.
"I have had a lot of critics along the way," he said. "Alfie (Le Fondre) leaving and me coming in, people thought I'd replace him but we are completely different and people didn't see that maybe.
"I have my critics and I'm still going to have them, but I'm really enjoying it at the minute. I think I'm playing as well as I ever have. In the second half of last season I did well too.
"I was out of contract, but I didn't feel that pressure because I was enjoying myself and the manager said he wanted me to play. When you have dug in and kept your place and are keeping newcomers out it's a good feeling because you know you must be doing something right.
"Coming into this year I felt like I started well, but then when we played at MK Dons and I should have scored it knocked me, it knocked me hard, there's no two ways about it.
"It took me a while to come back from that, now I have got that inner belief. I have always said I have worked hard and if you keep going you are going to get your rewards.
"Luckily at the minute it is happening for me. I'm trying things I probably wouldn't have done before. I have got that belief to go on and get in the right positions."
Source PA