It is and it does feel about as awesome as you can imagine. In our case we also had a tough integration and testing campaign where we were changing software and

It is and it does feel about as awesome as you can imagine. In our case we also had a tough integration and testing campaign where we were changing software and running into hardware issues, etc. so I was personally quite tense until we got first contact :) and since then, the satellites are surprising us every day with how well they work! (although we still have lots of things we want to improve)