WE are pleased you had a positive interview experience. Most people do. It is always up to the candidate to respond well to the questions asked and show what their skill sets are. Obviously you did a good job of that and were offered a position. As to it being a difficult interview, we do put potential employees through a series of interviews, interactions with various staff, tests, and observations in order to give them time to see what the company is like and to give candidates time to show us their best. Some people interview well and others do not. We often give people more than one chance to show us their skill sets. Ultimately we try to pick the best candidates at the time for the position in question. Many times it works out but sometimes it does not. We are glad to worked out, liked what we had to offer, and joined our team! COEM