Fairly good module for doing business date calculations. I have used this in a financial reporting tools. The ability to define holidays is a godsend.
However the documentation is lacking a bit, example when we call $d->next, what does the function call return, does it return the next business date as Datetime::business object? Does it return a 1 on success and undef on failure? or does it increment the object to the next business date? It took 10 seconds to look at the code to figure out the answer.
Apart from sparse documentation, there is nothing really to complain about. A good solid module.