my Favorite machine is the blentec blender. it makes smoothies with greens and other veggies a blast.  It also purees a sauce till fine with minimal passes through a chinois.  It is like the vita mix, but like it better as the sides are angled so the mix slides down to the bottom.   Has different blend times for different uses. the "grain grind" is amazing.    Overall a great kitchen tool for small volume fussy dishes...