Pros
The opportunity for career growth is big as remote and freelance work as a market is taking off. With the high speed of product iteration you'll get the chance to deliver improvements and new products, that helps gain experience and boost your profile. As the marketing landscape is getting more complex the product is that more valuable. Taking control of an aspect in the business lets you get a leadership position, and hire your own team as HelloMaas continues expanding.
Cons
The international company culture is fast paced and not for everyone. Compared to other companies in the Netherlands it is less relaxed. Be prepared to invest energy into your growth and deliver things when you promise them. Enterprise marketing clients are valuable but have more complicated requirements, that make product decisions more complicated.