After an HR phone screening, I interviewed at their Tukwila HQ.
Their interview questions were very high-level, none technical. It makes me wonder why they bothered in the first place. I had a good impression of Sila, based upon the reviews I had read, but left thinking otherwise.
Their office culture seemed strange. I can't quite put my finger on it (sterile?), but it's not good compared to top-tier Eastside tech companies.
One takeaway I had is that red flags should not be ignored: The person who would be my direct manager was unavailable for the actual interview; canned interview questions with little thought (a common problem, not just at Sila); colleagues who joined by video conference were dressed slovenly in wrinkled t-shirts, etc.
Definitely get clear answers as to whom you'll interview with before making the long drive from Seattle.