The flexibility and capabilities of OPL Cplex for making and solving LP/MIP complex mathematical modelling in a simple, ordered and robust way, is outstanding; specially when you need to make large-scale optimization or models with many constraints (business rules). OPL is a pure mathematical optimization language and that is one of its main advantages over other general programming languages, which makes it a best practice for industry problems.
What do you dislike?
The immature relationship OP-python-Julia, is not a dislike, it is basically something that is in an introduction stage, but it will be very powerful when gets to right level of maturity
What business problems are you solving with the product? What benefits have you realized?
Supply chain network design, production planning optimization, etc. As a main benefits: high quality solutions, good solving times and flexibility to create/modify equations and connect the model with databases engines for data management.
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