We machine progressive dies (mostly automotive) and do stamping, laser work, gages, fixtures and custom tooling of all kinds. We use PostHaste with VX CAD/CAM and use SurfCam's version of PostHaste also.
We post lots of programs - up to 30 a day, and we have many unusual coding needs, including chip conveyor and special coolant functions; all requirements have been quickly solved with PostHaste.
Getting PostHaste going with VX was easy, I just used my existing SurfCam post template with it... and it posted code very close to what we wanted right off the bat. The PostHaste support department addressed the few remaining issues in a short time.
We have used the posts that were included with SurfCam and Unigraphics (we used UG before we had SurfCam). With those systems, any changes we needed we made ourselves - easy with Surfcam's version of PostHaste, but a pain with Unigraphics' own (proprietary) post.
One concern we had before purchasing PostHaste, as I suppose a lot of people do, is considering the cost of paying for an 'alternative' post, even when one is supplied with your CAM software... but with PostHaste, you'll never regret it.
If only we had known about it before!