I havent played with it too much because im too impatient to keep adjusting and waiting for a minute each time, but I have made a 1 inch wave or so just playing around. Im sure I can get a little bigger if I tried. My tank is 6 feet long though so Im not going to get the giant wave like in this video.
Im afraid of my tanks seems busting after a couple of years, so I just stick with Reef Crest mode.
You can also find used Vortechs everynow and then now, so the cost difference between this project and a vortech isnt all that great.