No idea ! Download the trial of VCarve and try it and download estlcam. estlcam will start to slow down after a while, make you wait a number of seconds before completing an operation etc. I've never downloaded a trial of vcarve, but I know/assume that it comes with graphics, fonts etc. estlcam doesn't, it will use whatever fonts you have on your PC. I didn't have a good script font on my PC, but found one that was acceptable. VCarve is extremely professional and priced that way, I looked at estlcam and at $50 I could afford to lay the money down and put the effort in to make up for anything that I was lacking, VCarve Pro is a package, even Desktop is a decent percentage of the price of an X-Carve. To me, the money was worthwhile for what I gained, given it might be a few months for Easel to get the V-Carve functionality
I personally think that Inventables got this one right. Get the G Code import working well, get rid of the dependency on UGS which seems to create as many problems as it solves, and let the other programs, VCarve or estlcam etc do their magic, and then come out with a basic VCarve for Easel. I hope it follows their philosophy of simple and easy, and let the power users that need the extra power/features go to these third party programs that still do what they can.