I would DEFINITELY stay at this apartment again!
I preferred the two ceiling fans and the window that opens wide, but the air conditioner also works great if you like things colder.
The kitchen sink has a water filter attached. There is also a beach chair, and beach umbrella that you can take to the beach.
He provided the big bath towels to dry yourself with, but not the smaller ones to actually bath with. That wasn't a big problem for me, maybe he can provide them for you. I never tried to ask if he could bring some because it wasn't a big issue for me.
Also, the apartment has plenty of electrical outlets in convenient places. I forgot to bring a wall outlet adaptor for my US appliances, and when I let him know this, he provided 3 adaptors, they were waiting for me in the apartment when i got there!