Definitely the worst company I have ever interviewed with. They took 6 months to decide whether to call me to their office for a face-to-face interview. After the interview, they gave a lame excuse and rejected my application. Anyway, it is not a very well-known consultancy to work for. So, take your time, do your research properly/thoroughly, and then decide.
Trust me, mine is not a case of 'sour grapes'!