As a general reply to a variety of the complaints in this thread: don't underestimate the task that triplebyte has in selling you to companies, especially since they have focused on candidates who might not even get an onsite interview at companies on their own. Their process also involves helping candidates skip a lot of the interview pipeline at several companies at a time, so that you can get better offers. This means that companies have to place a lot of trust in their assessment, and my personal experience (having gone through the process and gotten a job through them) is that they have to be very very rigorous to sell companies on their model.

My interviews with triplebyte were definitely some of the hardest ones I had during my search, but they also focused on things I consider important in developing software in a way that no other interview pipeline I've been through has. It may be that my overwhelmingly positive experience with them is not reflective of most, but I think that's unlikely given the amount of work they put into standardizing their process.

Being on the side of engineers in the hiring process does not mean they can take it easy on interviews, and my experience would suggest that whatever personal intensity you may feel in an interview with them is very likely to be outclassed by any decent sized sample of interviews at a big company.

I'm definitely bullish on their model, and while the process isn't perfect I'm really excited to see them moving the needle on interview quality in the industry. I sincerely wish them the best with the expansion.