While they provide shampoo and conditioner; there's no body wash included, so bring your own.
They have all the towels you need, including beach towels... but there's only 1 towel rack in the bathroom. With 4 people, you'll need to get creative or just hang them on the chairs (what we did).
The pictures don't show it well, but it is a private residence with an enclosed yard.
We didn't stay long enough to need it, but there is a dryer and washing machine (bring your own detergent and softner/dryer sheets).
I didn't see an iron and ironing board (I don't think they were listed anyways).
The house is 2 blocks from PB Fish Shop, which I highly recommend if you like seafood and tacos.