you will luv it. i have had mine will be 6 yrs in may, i think.
it is a work horse. P stands for professional. that means a lot of heavy duty work can be put thru it, and IT KEEPS ON RUNNING. i have quilted many a queen and several king quilts on mine. i went to get the 6500 cause it was recommended to me, and the 6600P's had just come out, so got it instead. luv luv luv it.