high end crank vs low end ecp

Hi,

I'm planninng to buy a new stringing machine (my 2rd one) but hesitate between two options. My budget is about 1400 - 1500 usd. So I would like to know which is the best between an high end crank machine (gamma 6004 seem to be the online choise) and a low end electronic constant pull in the same price range. I know the the electronic one will have the ecp, and prestresh. But in term of quality and final job, what do you think ?

Thank you in advance
koo&tan