We used Sysmate when it was all that was available. When we obtained CX Programmer we were able to import our C200H and C1000 projects from Sysmate to CX programmer, go online and make edits without so much as a phone call to tech support. I personally found CX programmer to be one of the easiest and most intuitive programming tools I have ever used. I was able to accomplish everything I wanted by reading the available help files. It beats Mitsubishi's GX Developer, GE Proficy, RSLOGIX5000, and Siemens Step7 hands down in the realm of Windows based tools. RSLOGIX5 and RSLogix500 are still my favorites but CX programmer is a close second.