Vantaggi
Experience based on government projects, can't speak for the others: Some genuinely good people around. Learn what you can from them because they won't stay long. Good introduction into legacy Enterprise IT. Feel the pain and understand why the industry has long moved on from these outdated"best practices" Insight into how professional services firms generate profit. For e.g. churning at the lower levels, company lock in by not investing in training (mid-career guys get stuck, can't get a real technology job with PPT and excel as only skills), questionable business development practices. Good company to grow in if you're interested in the commercial aspects of IT delivery and business development. Terrible place if you aspire to be a technology professional.
Svantaggi
Singapore office acts as an independent entity, separate from global leadership. You'll constantly receive materials regarding global initiatives to develop the consulting workforce, but sadly, none are implemented in Singapore. Most people will be stuck doing low value delivery work throughout their career. Senior consulting folks will try to spin off their work as "delivery consulting", but can't write complete sentences without grammatical errors. Cool story bro. Useless management consulting workforce due to a bad fit with the overall business. Not any fault of their own because they were sold a lie when joining the company. Can't claim transport even when traveling to remote data centres because you are given "Transport allowance". Mediocrity at it's finest, colleagues with > 10 years of IT experience can't troubleshoot mounting a NFS share. High performance, delivered.