A cat owner myself, I absolutely recommend the pet boarding services provided by The Kitten Cottage. And here's why:
They're very particular about the health of your cats- which means your feline friends must be up-to-date with their vaccinations. If your pet isn't, don't worry though, they'll have a vet drop by to provide all the necessary vaccinations.
Ample space and cosy rooms (no bar cages!) for your pets including a play area for 'cat-xercise'.
And most importantly, the place is extremely clean without that pungent litter odour!