Well... since they don’t have an anonymous demo (have to fill out a form and they’ll contact you), there’s no real comparison I could do between the two CMSs. The only thing we have to go on is the look and feel:
From the look of the fronend, it probably has a Mambo-like interface, which I fumbled with for a couple months and never got the hang of. If this is the case, then it would explain why they need a "specialist" to guide you through their online demo
The URLs are NOT very human friendly, which we can all agree upon.
Finally, by looking at the source code, I found it to be overly cluttered and certainly NOT XHTML compliant; or transitional, as their DOCTYPE says it’s supposed to be. Single quoted HTML attributes and Javascript outside even the HTML tags is a mess IMO.
The pages certainly load fast (< 0.01s for me), but I wouldn’t put my money into a CMS that doesn’t comply with standards, and I don’t just mean W3C.
So there’s what I’ve got from just looking at it. If we could get a live demo without their "specialist" we could give you a better review.