Pros
To be fair, thats one of the best opportunities to move to europe if you are intially from not so lucky country. They do all the paperwork for you, they pay enough money for you to live in Amsterdam, they teach you perl, they make sure you feel comfortable while working.
Cons
If you want to achieve someting for your personal development - this is not a company for you. I would suggest to use at as a tramplin to get a job in a better company. If you try to grow - you will be denied on every possible stage. You have to fight with incompetent management every day if you do care about the product and people in your team. They never admit their mistakes, but they do make them a lot. But since the company earns a lot of money no matter what management does - they will be rewarded for this work independantly of their actual impact. This creates unhealthy environment when people with different contribution to company buisiness and culture success get equal benfits and bonuses.