Overall, a really great home to stay in and if we were to go to OOB, would strongly consider it again for many reasons. My 2 1/2 year old son, husband and I just spent almost a week at this home and it was perfect for our needs. It's hard to believe it's the regular home for the owner as the place was simply decorated for character, but without a lot of extra stuff you sometimes find at someone's home. It had all of the necessities in the kitchen to have home cooked meals (including a large pot for a clambake) and modern amenities (wifi, cable tv, coffee maker, toaster, blender). The grill and seating in the yard and porch were nice. We didn't use much in the shed but it was well stocked if we wanted to take a cooler, chairs, noodles, etc. to the beach. The w/d is key since you have to bring your linens - but you can wash them before you head home. The owners are new and seem receptive to feedback, of which we have very few suggestions. I had asked about hand towels and was surprised by a nice gift of souvenir hand towels and bag when we arrived on day 1.
Location was perfect - in a neighborhood on a quiet street yet still easily walkable (with a toddler and no stroller) to bagels, coffee and the beach. Parking is pricey so you're best off carrying it in or having someone drop off and pick-up if need be.
It would've been nice to have more of yard to play with our son, but the driveway was large enough to throw baseballs. For those interested, there is a large playground by the visitor's center. It has a (free) bathroom and free 2 hour parking if you can get one of the prime spots. Otherwise, there is metered parking available in the same lot. OOB in general is a great location especially for those with children because if the beach and the sand aren't enough, Palace Playland, Fun Town Splash Town and York's Wild Kingdom are close for day trips. There are a few local breweries to visit and dining options in Biddeford/Saco are worth checking out too (The Chef and The Gardener was a nice find for us.) Runners should plan to run along the beach on the hard packed sand!
Just a few caveats: for anyone in need of a/c in the hot summer months though, this might not be your best option as there are no a/c units. I would also caution anyone who is a light sleeper (particularly if you do keep the windows open) to think twice. We weren't bothered by the passing trains, but they do blow their horns late at night and early (5 am) morning.