Not all paid tools offer the same set of features. I have worked with a few in the past just for Converting OLM files to PST. Among them, I liked the working of OLM to PST Converter Ultimate. This tool by Gladwev is brilliant with conversion speed. The tool converts emails directly from the Outlook Mac database and converts all the contacts. Though it can easily export contacts from mac outlook to PST, I still suggest you take a free trial before the purchase.