Pros
their contract to start off with might look attract very good insurance coverage (insurance company based in france - you might lost some translation fee from EUR to HKD if you wish to make a claim)
Cons
They apparently said you would be assigned to a senior who would provide you with some guidance and provide training, but in fact, there is 1) No Training at all, 2) guidance are just to tell you to follow exact what client says and no other advise. Most of the "senior members" exaggerate their level of knowledge, although one/two of them might be actually knowledgable (but these are rare) According to colleagues and own experience, they have not respected and in some cases exploited your labour (especially on fulfilling their promise: especially on claims or expenses) Have payment problems with: salary and HK mpf (I heard that they have been reported by more than 30 employees to MPFA, the HK authority for related problems, also with some employee suing them), so a bad reputation to watch out for. I also heard a rumor that they will give really bad reference to your future employer if they don't like you. Also heard, unlike them saying it will be a permanent contract, they will chose to dispose you when they run out of project, or force you to go on holiday (and cancel your leave) between/ during project as they like. In my opinion, here is just too much problem about them, i would not recommend.