Since I was pressed for time having an offer on hand, I was given a Karat interview. Karat interviews are not the same as interviewing with company employee. While a company employee can see that your problem solving skills are strong, and whether you are able to think of optimal solution to a challenging problem, this doesn't work the same way with Karat. Either they should ask only one question and test for optimality and don't ask dev ops or system design questions because it's not possible to assess someone's knowledge with those 2-3 questions and I'm not sure how they rate those. Even after having a lot of experience and having taken so many challenges in my job, they always gave me a bad rating for those. It's not possible to judge someone's knowledge that way, they should stick to coding questions only. Overall I always had bad experience with them when I was easily able to clear technical phone interview for some of the big companies when interviewing directly with company employees. But with Karat it's a blind game. And if you solved a hard problem fast, they give you second one and if you don't solve that within time, it doesn't matter that you already solved a hard problem and they don't give you good reviews. I absolutely do not recommend taking the Karat assessment, request interview with company employee no matter what because chances to get approved by Karat are low.