I have own the 12 v. model for a couple of year and be well satisfy with performance . this newer 18v . machine be definitely more powerful , vacuum much longer on a charge , and have a number of design improvement such as the ability to fold up and to reach under low furniture . the only limitation I have note be the initial difficulty of take out the filter for cleaning . I have to return to the manual a few time before I remember how to do this . the operation be , however , quite simple and the filter be efficient . a worthwhile upgrade to a handy tool for floor and light carpet cleaning .