I own about 80% of the Oxo line.  I love nearly every piece I own.  This piece, however, get mixed reviews from me.  It minces herbs fine but it is a pain to clean.  Yes, all the parts disassemble so you don't leave any  bits of herbs in after you wash it.  It's just a pain to do the  disassembly/reassembly thing everytime I use this tool.  I personally think  an Italian Mezzaluna is better, quicker and certainly easier to clean!