If you have never been to Hawaii, then maybe. If you have, then no. I think the main attraction of Mancora is the wind. If you are into kite sailing, then this is the place for you. Or if you are into wind.
We went in search of sun in winter. It took twelve hours to get there from Lima, including airplane trip, hotel stay, and almost three hours by car. Plus the flights were about $250. Collectively, I think for a sun vacation, one could fly to Cartagena for the same travel time.
I chose a mainstream hotel with gorgeous photos on TripAdvisor, and while the food was good, the place lacked many other things that I expect for that price per night (hot water, elevator as restaurant was downstairs, towels, lack of peeling paint, cleanliness, etc.).
It’s probably a better experience if one stays a private villa with butler and cook. Or at K!chic (one can also eat there even if not staying there).
We flew through Tumbes and I think I actually enjoyed that experience more than Mancora. Tumbes just got its first mall.
The downtown part of Mancora is touristy like Thailand. It’s not a cute town that one would wander about soaking up the culture… I think you go to eat seafood fried rice, chicken wings, drink, and admire the crusty tourists.