I have had Kowalski complete two fairly large (at least for my budget) jobs for me. One was a kitchen and roof restoration after an insurance loss due to rain. The other was a back half addition and remodel to the existing property. In both cases Kowalski's staff was awesome. Sometimes having workers on your property while you are not home can be stressful ( hey I don't know these people right?). But I never got a bad vibe from any of the workers and everyone was polite and very professional. All of the work was handled on time and the only budget overruns were due to issues that NO ONE could have predicted (asbestos floor tiles hidden under laminate). At no time did I feel I was getting "the ride" on prices and all of the workmanship was as top notch.
TL;DR Kowalski is a family company and they operate as such. They have the ability to do large commercial jobs, but even my "small" residential job I felt like their only customer.