Vantaggi
It's all fake, bloated and hyped so none. Reach out to previous employees on Linked In and talk to them directly before joining. If self respect, ethics, career satisfaction, visa status etc. are few things that matters to you do not give a shot.
Svantaggi
Please see list below - = Read your joining letter carefully for all bad one sided clauses. Clause related to ever-delayed bonuses, clause related to one sided notice periods, clause related to ever-delayed reimbursements and so on. Your first feeling will be - "I do not want to sign this crap". Listen to yourself. = Get your visa messed. = Don't expect to get your I-140 document or filing number from them. They will not share as they think by holding it they can stop you from leaving. = You won't get your experience letter. = You will be shown as hero to get double billing from clients but right from the time you give them notice there won't be worst person than you. = They don't have any future. They just have one major client and plans to sell out the company leaving you unemployed anytime, just beware. = Big promises of salary is fake too - if you have your math right major part of your salary will be structured in number of different kinds of bonuses you wouldn't have ever heard of and are tied to some shady clauses which can be called off at any time. = All fake and bloated promises when you join. You will be shown as if you are going to join Apple or Google but only after you join you start feeling the difference and till you realize you have done a mistake you are completely in their trap. = I won't be surprised if this company will be raided and closed down soon with multiple fines and lawsuits. = Other sufferers have already described there experiences. Learn from them and stay away. Save time, there are plenty of good companies out there. If you are really interested in consulting try Deloitte or E&Y or Cap Gemini or KPMG etc.