pro:[list type=square]
[*] significantly lower prices on certain models & materials (30-50% and more)
[*] better color match & finish on color (no ugly yellow wax)
[*] pretty flexible on minimum wall (have printed steel and color items with 1.5 mm wall thicknesses)
[*] working feedback loop when a design is difficult to produce (no "your order has been cancelled"... !!)
[*] ship to any customer address
[/list]
con:[list type=square]
[*] significantly higher prices on other models & materials
[*] complex pricing, not easy to comprehend/predict (no simple $/cm3 scheme, need to check each model)
[*] free shipping only starts at 99$/€
[*] somewhat slower on order processing & deliveries
[*] no on-site gallery/shopping (can also be seen as a pro!)
[/list]
Take a look at their new "Prime Gray" STL material, it may be something for you. I would believe they are not too strict on the 1mm wall. It appears to be cheap, too.