To start with I don't have Engravelab but I do have Signlab with the routing module. I've used Signlab for over 6 years making vinyl signs, when I got the Shopbot I tried VectorCam and another few Cad programs but found them waaaay to hard to pick up, so ended up with Signlab ES with the Route module. I found that the route module was real easy to pick up though I was well used to Signlab. I used the file from the "download" section at shopbot.com instead of the one supplied with Signlab. I had a few teething problems with the file and had to change the shopbot.ini file, but it's working great now. I tried sending direct to the shopbot but failed, so I run the SBP file from the Shopbot program.
If anyone has any questions about Signlab I'll try and help. From what I saw of the demo engravelab looked pretty much the same.