Never actually stayed there - always hit it and moved on (damn, that rings true for so many things).
But, while you're there, you'll definitely want to hit the jungle tour where Predator was filmed. Great, great tour amidst the jungle and there's also an absoultely excellent restaurant there, with a little waterfall, freshwater river and waterfall-basin that makes for some excellent swimming. Been a few years since I've been there, but I'm sure it's held up well.
We went on that tour...got it for $6 (USD) a piece through a friend who owns a shop down there. It was definitely some neat scenery, but the tour left a lot to be desired in my opinion, even for only 6 bucks! Maybe it was just me, but I tend to not enjoy "tourist traps" all that much, and that's what the tour was. First we got a "tour" of downtown PV. They told us about a tribe that lived up in the hills while they took us to a shop that sold souveniers (sp?) from that tribe. Then we got to see city hall, and an old church (the only two genuine stops on the trip). Then we went tequilla "tasting." It literally consisted of pulling the whole tour bus off at a large silver jewelry shop in the middle of an old town. While we were "tasting" (there were only 2 or 3 different tequillas to sample and some coronas for everyone, we were encouraged (read: badgered by the staff there) to "browse" try all sorts of things on for size. (My wife and I went outside and waited on the sidewalk for 90 minutes and watched the comings and goings of some of the locals. Then we went across the street to a tequilla factory. It was somewhat interesting to see the process, but it was basically another sales pitch, but not as pushy as the others were on the trip. Then we went to the Predator site. The bus ride up was SCARY!!! Some of the steepest windiest roads I've ever been on, no less in a tour bus! I gotta give it to those bus drivers, I couldn't have done that! If nothing else, the ride up and down to the site will give you a thrill! Lastly, we ended up at the Predator site. Really neat to see the jungle, but be prepared to spend big bucks for food and drinks. While up there, they have some places where you can put on your bathing suit and swing on a rope into the river, and as part of another tour, you can do the jungle canopy ropes tour. It looked like fun, but we didn't spend the money for it. The tour guide was nice, but I honestly didn't enjoy the tour. It was painfully obvious that shops paid a fee to the tour company to bring bus loads of tourists to each of their shops.
If that doesn't sound like fun to you, steer clear of those types of tours, of which there are a plethora down there. If you are interested in the Predator set, see if you can find a cab to take you up there without having to spend an entire day looking at various shops and having no way out without walking through the jungle back to town. I can't imagine going on the tour we went on with children either.
Like I said, the predator set was interesting, but be careful if you pick a "tour" that leads you up there.
Have fun.
Matt
Lots to do also!!