"The people that I met and the players that I played with there, they're all first class," Guenther said. "I'll never forget the times there, from when I was young -- I was 15 years old and getting a call-up to play for the team -- and watching all these guys who I really looked up to.
"And then being one of the older guys and go on that championship run, you know, that was really special."
He's also grateful for the support of his parents, who have never wavered in helping him throughout his career.
"They're going through the same thing I am, and it feels like they're right there with me at all times," Guenther said. "They've been through everything that I've been through, too, and they've been by my side the whole time.
"I talked to them the day before and they didn't tell me anything. They must have known, but I think to have them share it, I know it's a pretty emotional day for them, and they were super proud, so it's pretty cool."
Guenther also said the support of his Coyotes teammates has meant the world. Throughout his journey, beginning with training camp last season, players like Christian Fischer and Lawson Crouse have been there to help.
They were over-the-moon for him after the news broke on Saturday.
"For them to be excited, that's really special to me and makes me feel like part of the team," Guenther said. "I think it's great how welcoming they have been, and how they were just as pumped up as I was."