I've had a very similar experience, and unfortunately it was my first client on Rover. I house and dog sat for a couple for a weekend, and even though I'd had a medical emergency, my partner made sure their house and dog were always safe and secure, and their dog was happy and very well cared for... After being discharged from acute care/observation almost nine hours later (the emergency hospital trip happened around 3 AM) I even went back to the client's home, had my partner help me take their dog for a walk and cleaned the all the rooms I'd used in the house thoroughly, myself, left a thank you note and a "loot bag" for their dog...
Still no review, and it's been well over a month. I also just had a client refuse to put their home address on their profile so I could set up a meet and greet. I understand the need for a feeling of security online, but I did everything in my power to help this client, even give step-by-step instructions on how to add their home address and why a meet and greet is both mandatory with me, and important for their dog. Two days and they haven't responded. I honestly am starting to wonder if I'm doing something wrong, here, although I doubt it; I've had stellar reviews sitting for neighbourhood dogs and veterinary medicine is my primary career field.
Sometimes you win, sometimes you lose some. I've lost a bit my initial optimism but I won't let that stop me from doing what I love; cuddling dogs and helping their families.