1st of all, be VERY carefull with the tap water, use bottled water for EVERYTHING!
We thought we were precautious enough, but obviously, should have used bottled water to rince salad, or even rince after brushing teeth... Be carefull of ice cubes as well (though most places use filtered water for these, but better ask and make sure).
Rented an appartment in Porto Antigo residence, which was very nice, but pricey, you have way cheaper options. But in any case, try to stay in town center, near this zone: they have developped residences and hotels a little further away just out of town, I passed them everyday I went to kite beach, and they looked empty and depressing. I was happy I did not book there as intended first because of the cheap price (not sure they're even open now?). Some people I met there were staying at apartHotel ponta preta, or an hotel next to it, and they said they were happy with it.
If your wave clinic is with Mitu, you're lucky, he's the best teacher I've encountered kiting.
Other than that, enjoy!