Daniel is a very friendly and informative guy.He was always ready to talk about any subject we were interested in. He also helped us buying souvenir! Please note that the bunker part of the tour is made by the company that explores the bunker. It's very expensive and I'm not sure whether it was worthwhile. Our guide there reminded me Penelope Pitstop and sighined every time she spoke. Anyway, Daniel is a very good guide and it's just a matter of what tour you choose.