Very nice company to work for, the CEO has a lot of good influence over its directors. The ambiance is great, technically, the job is very interesting.
Cons
There is nothing that comes to my mind that is negative regarding Datumize for now.
The project is super exciting; the company is in an apparent "momentum," the team is like a family, and the profiles are high-qualified. And, most important, despite the continuous exploring there is always focus and common sense.
Cons
As in every startup, there is always some uncertainty and even chaos, but nothing that you cannot overcome just being a little bit flexible.