I've been to Tenzan a few times, and every time was a good experience, until today. My friend had made a reservation for a room 2 weeks prior to today for a birthday celebration. We walked in today and asked for the room. One of the employees said they did not have my friend's number on record. So they situated us in a random table. We were talking (cordially) to the waitress that we had made a reservation and we should be able to get a room and two of the waitresses got defensive and told us that they always have receipts of reservations and they are sure they do not have our reservation (with a attitude might I add). They kept giving us nasty looks too, talk about rude. Then after 10-20 minutes we finally got our table after they admitted they made a mistake and not even apologizing, just simply stating it was their fault. And even after we got our room, we were rushed through out dinner so quick, it was like a race. The service was so bad, even the good food couldn't have made up for it. If we wanted fast service, we would've just went to McD's, which is exactly what we did afterwards.