The big thing I will say from my experience there: the people are AMAZING. I didn't get ripped off, everyone was so friendly, got to play basketball with a group of kids and had a blast. And the nature is incredible.
It also had some of the most downtrodden areas I've ever seen, some of the biggest displays of wealth disparity, and after a few weeks on different islands, Manilla felt more like a theme park for the rich than any kind of city.
Overall, really recommend it, but try going off the beaten path!