To Whom It May Concern: Machin Engineering was hired to make changes to firmware handed over from our original developer. Sean was thorough in taking the time to understand the existing code, meeting with me personally to see the product and then come up with estimates for the work we requested. I a
m very happy with the work completed on the IstarGPS product. This includes enhancements suggested by Sean that make our user interface look better. The work was completed on time and at a very reasonable price. I will not hesitate to use his services again.