Really, I think the kennel was fine. I grew up in the wilderness, and none of the kennels we ever used were ever open on sunday either, and also my work hours are really flexible, so it was no problem for me to drop doggie off thursday morning and pick him up monday morning.
The groomer wasn't great, but on the other hand I think in 15 years I've never been 100% happy with the way a groomer groomed any of my dogs, which is why I've started doing it myself. The groomers DID follow my instructions for what to do to doggie-- they got rid of the mats around his collar and cut him down to the same length all around, so at least they did what I wanted them to do. I had to clean up the trim everywhere when we got home though, so I probably won't get doggie groomed at the golden bone again.
I think that maybe I want to give more like 3.5 stars: 3 for the grooming and 4 for the kennel itself.