The centre was formerly at Exeter Chiefs and believes he will return to the English game a more mature and better player for his experience overseas.
And he revealed a big part of his move was the feel around the club and city as Warriors begin preparations for another year of Aviva Premiership rugby.
"I can't wait to come to Warriors. I have been around the club and I liked the way Richard Hill spoke and the plans for the future and next season. Walking around Sixways I was sold on coming here and being part of it," he said.
"I actually went to watch a game at Sixways when I was just 13 and that has stuck with me.
"It's an awesome atmosphere at Sixways and you feel like the whole city is behind you. Everything stops on Saturday and people go to see the Warriors. I love that about the club.
"I am a better player since the move, as a life experience I am better for it," he added.
"I feel a more mature person for the move to France and what I have learnt. To face the likes of Toulon, Perpignan and a packed house against Stade Francais, it's only helped me.
"I feel like I have unfinished business too. I didn't really establish myself at Exeter and this is a great opportunity to come back and put my stamp on things.
"The move to Racing Metro 92 was an amazing experience. To play and live in Paris, experience a new lifestyle and culture.
"I got to play with some great players like Sebastien Chabal, Juan Martin Hernandez, Francois Steyn. These guys are awesome and have taught me so much.
"To be rubbing shoulders with world class players has made me work on my game and strive to get better. I have improved so much just being around them, on and off the field."
Watch Josh Matavesi and the Warriors in Aviva Premiership action in 2012/13 with a Season Ticket at Sixways!
Call the Warriors Box Office on 01905 454183 or click HERE to buy online.
Download the new brochure for all the package information by clicking HERE