Installation was smooth, but we ran into a few problems due to issues with our own custom template (not the fault of this component). Stan was quick to respond even though it was early morning hours his time. The only other issue we had was in regards to an SSL bug regarding the component but Stan quickly sent us a fix with an updated version of the component.
Overall I am highly satisfied. This component does what it promises and more. The support is great and there is a 14 day money back guarantee. You can't beat that.
Stop wasting your time looking at other one-page checkout components. This is the one!