Not a good experience at all. When I showed up they were not prepared to interview me. The people there seemed polite enough, but they hadn't expected me. They grabbed a technician who was available, gave him my resume, and asked him to interview me. I feel bad for the tech, because it seems like he didn't know where to go with the interview and this was possibly the first one he's conducted. He asked me a series of technical questions which he pulled from a Google search on his phone right in front of me, then asked a few situation based questions on his own. The next part was questioning what experiences I had at previous jobs, and criticizing everything that wasn't done the way he's familiar with. The interview went on for about two hours with the interviewer just asking as many random tech questions as he could.
He didn't even find out which position I was applying to until about halfway through the interview, which explains why he was treating it like a helpdesk position interview the entire time. Even after finding out it was a Tier 2 Network Administrator position I had applied for, he sort of admitted that it wasn't really the position that I had spoke about with one of their account managers and instead more of a tier 1 field tech position.
They haven't even reached back to tell me that I wasn't chosen for the position.
My advice to the company: have a manager prepared to conduct the interview. Criticizing everything the candidate or his previous companies have done because your company does it differently isn't a good idea. And be more honest prior to the interview about the job role.