I have used Interlude and had a positive experience. They had some neat accomodations for the pets. One big plus is that there's someone there all 24hrs in a day.
I've also used Chesapeake Pet Resort (
Deluxe Dog & Cat Boarding & Grooming | Hollywood, MD | Chesapeake Pet Resort & Day Spa ) because it is much closer to me. I liked it well enough but I wasn't a big fan of their pricing policy. If the days change, a charge is added so if you leave your pet overnight then you are charged for two days, unlike at Interlude where you basically get a 24 hour period before charges roll over. Also, they didn't always have such great availability last summer. Reservations had to be made well in advance during the "busy months".
I don't know if this is an option for you but in case you're interested, we're currently about to try out Wags and Whinnies (
Home - Wags and Whinnies). It's a pet sitting service where the sitters come to your house, walk your dog, pick up your mail, water your plants, or whatever you need while you're gone.