It has been a while since I have been to Acapulco - used to go a lot "once upon a time" as it was only a few hours' drive. However - it's an old resort, some infrastructure is kind of old (so choose carefully) and there is some health hazard due to untreated sewerage (particularly in the rainy season, which should long be over by now - the government denies any problem but periodic outbreaks of cholera nearby give away that lie, but I'd avoid shellfish like oysters, clams, etc.) and it is in the state of Guerrero.

The state of Guerrero is known for drugs growing and narco-terrorism, corruption and Hatfield-McCoy feuds, not necessarily in that order.

That being said, Acapulco has long been known for good fishing, some nice beaches (take the small boats over to Roqueta, for example, or go out of town to watch the sunset at El Revolcadero beach near the Hotel Fairmont Acapulco Princess south in Puerto Marqués - and nort, Pie del la Cuesta (pee-eh day lah quest-ah - you can sometimes see sharks in the huge waves outlined against the setting sun, but beware the huge undertow and the mozzies and bugs coming in at dusk from the Laguna de Coyuca a- a decent place for wildlife and bird watching - lagoon nearby), its night life, etc. Check here to begin with (but be aware it strikes me as a bit overly promotional, but that's me).

Best thing to do is to get some local knowledge, avoid shady places - particularly at night (for example, the "Zona Roja", or prostitution zone and its bars - prostitution is "regulated" in Acapulco).