I just used this for the first time yesterday, so it's a little early for me to be rating it. Two things that would have pushed this to the 5 category: different design on the top rack.  It seems to be designed for small teacups and small drinking glasses.  I'm not able to make efficient use of this rack with the dishes we use. Also, an external indication that the cycle is complete.  I think you have to actually open the door to figure that out.