Absolutely! Not to mention the often impressive performance of "general" MIP solvers. It is only a shame that the best ones there are commercial (Gurobi follo

Absolutely! Not to mention the often impressive performance of "general" MIP solvers. It is only a shame that the best ones there are commercial (Gurobi followed by Cplex). That said, Cbc is lovely in a wide range of cases, and is open-source.