The difficulty of questions are medium level, but the whole progress is REALLY bad. They gave me a verbal offer after the onsite interview, but then told me won't move forward since I am not interested in full stack developing. This is super weird, no one told me that I should in charge of front end work during the onsite interview, and I also mentioned I prefer back-end job. I talked with the recruiter and she explained to me that everyone in the company is full stack, and recommend me for another role. OK, fine. After that I took two more interviews, but they just told me there is no offer until other candidates complete their progress. It took me almost 2 month and the follow up after I passed the onsite interview is just like kidding me. No sincerity at all. I won't consider this company any more even if there is no other offer, and won't recommend any of my friend to take the interview.