Your cat is a territorial creature, very attached to the comforts of its own home. Cats are not happy being removed from their familiar environment. Although there are boarding facilities for cat care, your cat will spend most of its stay in a cage. Some cats experience stress in this situation. Also, since your cat will be kept in close quarters with other animals it is susceptible to germs in the environment that can spread easily. Having a professional cat sitter come to your home and spend quality time with your cat in his own environment, aside from just feeding and cleaning the litter, is a much better option. Another advantage of hiring a cat sitter to come to your home rather than boarding is that you don’t have to transport your cat to and from a boarding facility, which can cause a lot of stress to the cat and to you!
Your cat definitely prefers your company, but since you may have to spend time away from him/her, the ideal situation is to have someone who is experienced, responsible, reliable and loving come over and take care of your cat in his own home. When that person is a lifelong cat lover it's even better!
A cat sitter also helps make your home more secure while you’re away by making it look lived in, e.g. turning lights on and off, opening and closing shades and windows, and taking in mail and newspapers.