Just purchased and installed. Install was a breeze, heaps of options, just tried it on a couple of sites I maintain and does what it says. I like it's left most button auto showing me "what's new" with link to Changelog (I wish more products would have easy access to its changelog).
SEO Checker seems cool - gives me some warnings that I'll check out when I have some time.
A minor issue is I didn't find a way to get rid of the Grid Settings panel when displayed - a page refresh removed it.
I'm no full time or expert web designer but from what I just tried out in less than 15 mins - I like it.... a bargain for me a my needs. Hope this product is around to stay and there's more to come!