Kujo, I understand your fears,
My understanding is that oP group Germany GmbH is not a big company at all. I am not able to find any financial data on Hoovers and I spent some time making research before deciding to invest my time in learning Zorro.

My conclusion was simple: oP group is closer to a one man show than a 20 FTE company, but they (or he, if you prefer), have developed the most advanced piece of software for algorithmic traders available at this price level (0-400€).

There are many other weakness: the community is small, real small. No marketing, Ugly product name (sorry jcl), old style web site and forum,... we can talk about this for hours, but (and is a big BUT) I did not find any platform better than Zorro. Did you?

Finally I decided to buy Zorro S, learn it, find bugs, supporting (little to be honest) the community,...

ciao