Remy remains a QPR player after failing a Liverpool medical.
"From our point of view we've got a fantastic striker - one of the best strikers in the Premier League in my opinion," Redknapp said.
"Liverpool's loss is our gain. When he went to Newcastle last year I said he was capable of 20 goals in the Premier League so that's what we need him to do.
"I'm disappointed for the boy that his move didn't happen but from a selfish point of view, I've got a great striker back here now.
"If he's here, we'll be delighted to have him - he's a good lad, a good player and a good professional."