Stable and friendly working environment. Nice office. Flexible work time. Open to start up ideas and willing to support you if you want to create business. This is maybe the biggest advantage of this company.
Cons
Since it is outsourcing company, salary is quite low. Also clients usually make most of technical decisions, thus an employee does not have much autonomy in work (from what I saw). The project I worked on was uninteresting from the technical perspective.