My girlfriend and I stayed at Riu Jalisco for a week. Overall we'd probably go again, but we found ourselves watching movies in our room instead of watching the entertainment they showed at night. The food was good, plenty of variety and all decently fresh, the food areas were kept decently clean. I'd suggest going to the smaller buffet across from the main one when it's open. Cleaner, colder AC, less busy. There was only one night, Thursday, where the buffet was super busy to the point of walking around waiting for a table to clear - probably all the new arrivals.
The pool is nice, not very deep, but pretty clean when we were there. Zero shade until the late evening - they close the pool at 8PM. I would have preferred later. The ocean was rough at times, but the beach was clean, plenty of chairs, and the vendors were a very minor annoyance at worst - they don't push at all, just say "no thanks" and they'll move along.
As for the entertainment, they played movies on two nights. One had no signage and we just happened to stumble on it, the second had signs advertising it. They played Lucy and American Sniper. The shows were loud and obnoxious, but not that exciting from what we saw. The nightclub was uncomfortably loud, louder that you would expect from a club.
Things must get pretty crazy past 2AM when we'd sleep though, as a couple nights we would get a random phonecall at 4-5AM. I answered once, and heard blaring music and someone asking for somebody. We also had someone knock on our door around 4AM once. Unplugged the phone, and had no issues after that.
Overall, yeah, I'd go again, it was relaxing, everything was near our suite and we had no outstanding issues.
The free wifi is mediocre, it might reach your room, but it will drop often. We paid for 7 days of wifi, which was useful but dropped extremely frequently. We had better reception on the beach than we had in our room.
Taxi to Bucerias is about 85 pesos. The Plaza Lago Real about 100 pesos. The Malecon about 230 pesos.
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