Pros
The novel idea of running the sandbox in VM.
Cons
Sandbox in VM idea will catch up sooner or later with competitors if proven to be beneficial. Minimal/no engineering documentation, for some explanations you get a drawing on a whiteboard, if you are lucky. The first level management is clueless about coding, architectures. Good at navigating the product GUI though, some Linux administration, network skills. No peers code reviews, just "make it work". This resulted in poor designs that needs to be maintained. Engineering communication is minimal, reduced to the work at hand. Even this is hard, for some because of their personalities, for others because of their English. The management thinks that is protecting their IP by preventing the engineers knowing more then what they need to do for their current work, you don't get a chance to broaden your perspective. The development process looks more like "putting off fires", what ever fires are burning at the time.