I cannot say enough about this beautiful, comfortable house, and it's incredibly helpful owners. It was the perfect size for myself, my fiance, and my sister for Thanksgiving 2018. We really appreciated all of the extras: beach towels, chairs, and umbrellas that saved us the hassle and expense of renting them from the locals, particularly as the holiday weekend meant a lot of beach crowding, and we ended up at San Francisco beach a few times just to have some peace and quiet.
I will also say that all the complaints about the neighbors' rooster are spot on, as well as the on-going street noise. If you are looking for a quiet spot above the bustle of the town, you will not find it here. One other constraint, at least for the next few months, is the amount of construction traffic on Calle Ninos Heroes. Because it is a narrow, single lane road and large, heavy trucks were heading up and down, there were numerous times that we ended up trapped in on Calle Bugambilias or in the square while we waited while trucks and cars got throttled waiting to pass each other. The day we left there were government workers there painting yellow curbs that should discourage parking on the shoulder (there are relatively few sidewalks) so that more traffic can pass through, so perhaps this will not apply to future renters. Finally, if you decide to rent a car, be sure to get a small one. We saw a number of Americans in Suburbans that could barely navigate the Sayulita streets.