The interview process was way too long. From the time I had my 1st phone screen to the time I had subsequent phone screens and onsite interviews took about 6 months. I had started losing interest in the position by then.
The SF office is really nice and the people were very cool. There was free food for lunch and an overall fun atmosphere. The people working there did seem to enjoy their job and it seemed like a great place to work. I was offered a position but declined due to the extensive travel involved. The field support engineers travel at least 75% of the time. They did seem to realize how difficult this was and it was discussed that most field engineers do not keep that position long term. They work that job for a year or 2 and then transition into another role at Splunk. So had I been able to put up with the travel I do think this would have been a great opportunity with a great company. I had an offer on the table from another company without the travel so I went with that.