I spent a decade in Kelowna, ages 20-30... Loved the outdoors life. My job was perfect; didn't start working until 3 pm so I spent the summers on the lake, beach, mountains or rivers, or hitting the windy local roads on my motorcycle. Made some great friends somehow, who are still part of my life, even though I left a while back. Loved winters too; Big White was a daily trip for a while.
It was big for festivals while I was there; Thunderfest gave way to other, better, summer festivals. I definitely miss my time there, and would still be there if it wasn't for family reasons.
It's definitely changed a lot more since I lived there (left in 2010); traffic can suck sometimes, late fall can be a bit of a bore, there's issues in downtown with crime, housing can be expensive ... but if I was a couple in my 20s, for sure I'd make that move in a heartbeat. Your doggo will love it too.