Powell was snapped up from Crewe Alexandra last month.
He told mnautd.com: "It's been great. The lads are really nice and they've all helped me through the first week. I feel like I've fitted in well with everyone. The training is different but it's something I'm enjoying and just getting used to.
"Walking into the dressing room and seeing my name on my peg was a great feeling and the first people I saw were Giggsy and Scholesy. I'm just used to seeing them on TV so it was pretty amazing to see them stood there. They came over straight away and welcomed me which was great.
"I'm really looking forward to playing and training with them - Scholesy is a midfield maestro and one of the best in the world ever and then you've got Giggsy who has been running the left wing for over 20 years."