Despite most of the people that took a tour to the site, I did it the local way by public bus from Baku. It's really recommended to go to the museum first to have a better understanding of the site archaeological findings and visualize what it was in the past.
It's a bit of walking uphill if you don't have a transportation, but the view along the way is rewarding. Especially you can see the village and the Caspian Sea on a sunny day.
There are a lot of carvings along the path, some of them occurring a big area while some you might just missed if you don't look clearly. They are all sided by numbers so you can basically follow so you won't miss it. The carvings are in good condition with most of the symbols of human and animals.
Some of the carvings are high up on the walls, sometimes wondering how they managed to get up at that level with limited tools available at that time. Some of the carvings are interesting too. Let your imagination flies and try to think in the Paleolithic mindset what the carvings are meant for.
The rock art can be combined with the mud volcano trip which is not far away. These two are considered extraordinary visit sites in the region. Definitely worth the visit.