Initial contact might have been better. Ricardo had to park the vans a couple of blocks off the entrance of the port, and everybody was there at 8:30, and he wasn't... We had to call his cell, and he told us he was on his way, and would be there in 5 minutes. He then showed up and we followed him to the 2 vans. Tour in itself was nice, Ricardo was a good guide and very friendly (always smiling!), and he showed us the main things to see in Natal. Worth the price. Do not know how the second guide was.