Humane Society Couch Crasher Program

Someone posted about this in a Facebook group and I am super curious on this. I don't have the capacity to have a dog full time, but I thought this might be cool to do as I love dogs. Problem is, live in a small apartment that gets pretty warm when I am not home (hybrid schedule). I have a neighbor that keeps the dogs in a kennel when he is at work, but I kind of hate the idea of fostering a dog and doing that. Is that actually pretty normal? I had a dog when I lived with family, but my family had a house and the dog was able to roam the yard in the daytime. Does anyone have experience with this program?