Chan Chan is super impressive on first sight. It looks great, has the feel of a great place, people highly recommend it and I really wanted to go. So why am I little disappointed? The walls. The walls are re-made. I know it seems picky but it kinda looks like the whole place has been constructed recently. The original parts are overgrown areas that aren't too interested at the moment, or maybe never. The covered section has the detailed decorations everywhere and like I said it's great to look around - just looks fake. It's a shame, I think the restoration work is overdoing it.
There was no guide offer but they sell a small brochure to explain items on the way (it's only in Spanish). I first visited the museum at the main road and then took a collectivo down the road to the archaeological site.