I have been using cushy cms for a couple of sites I'm developing and find it to work very well. The previous comments are correct about giving up some of the effects that can be done within XWD however this isn't much of a sacrifice with regard to standard text. To place the "cushycms" tag on a block of text simply create your text block, allocate the size of the text area and then click on the text and add the "cushycms" as an html tag using the placeholder function. You can also do this with images. I'm still getting accustomed to how it works but it's the best option I've found. Plus side to surreal is that it's totally free as long as you aren't concerned about private labeling.