Yes the DF 700 is brilliant. I got mine before the 500. It can mortice up to 70mm x 14mm so for doors and windows it's great. Also although a lot bigger that the DF500 it still works well down to 8mm as it's well balanced and fairly vibration free. The DF 500 only has a max plunge of 28mm but is good for cabinets, jointing boards and smaller section stuff. Geoff