The fact that the meaning equals "Great Glory" is a little green check in my book. Unfortunately, in English-speaking countries (The United States, for certain) it will without fail be pronounced in rhyme to "Coleslaw." Grade-school children are mercilessly cruel, as will the business world on a different level of intensity. If used in the name's native land, I find it incredibly handsome. Perhaps if you truly are of Polish decent, living in America, and hold a surname to balance-- may it be acceptable.
Other Polish rulers by this name were king Boleslaw II the Generous/Bold/Cruel and prince Boleslaw III Wrymouth. The 20th century features more infamous examples: Boleslaw Bierut, the president of Communist Poland in the worst period of Stalinism, and nationalist leaders Boleslaw Piasecki (inter-war period) and Boleslaw Tejkowski (the 1990s).