Wow you got a lot of responses! I was given a take-home assignment from Kagi to build a RSS scraper where Vlad responded to only one of my four questions. I asked how long I should spend on it, and he responded with a single sentence saying as long as I thought necessary. After four days of work to get an MVP complete, I submitted the project. I received a single sentence rejection a week later.

Love the service. Very disappointed in the process. Four days for a take-home with absolutely minimal feedback is really bad. I decided to jump through the hoops because it seemed like a really cool company to work for.