Looking for a kennel for our 10- year old dog, she's never been in one and we are greatly concerned. We've had private care since she was a puppy. The timing isn't working this year with our care giver. Any advice on what we should look for, or be concerned about, any suggestions, thoughts? We are looking for a comfort level to know our dog will be well taken care of. She's a small dog. I believe kennels keep same size dogs together, I hope?? Suggestions....