They are satisfied with the work of the developers because they perform different tasks in terms of complexity (for this they changed a few candidates because they were not competent in what we needed). These developers have the appropriate level and therefore take the tasks of any complexity. Even if a part of the code is undocumented, they can break down, just more time is spent. They connect regularly, if tasks appear more priority, then they can adjust their schedule. The cost of services is average, if taken in general by the market. The payment was made for the tasks actually performed.
The programmes are pleased. We recommend cooperation.