I've heard that and seen lots of good systems that run geo. I was gonna get one originally as well. I had a korallen unit previously but the bubble counter cracked and you csnt bypass it you have to spend like 150 to replace the lit and bubble counter. So it sat in the basement for a few years. When I decided it was time it was a toss up between geo and vertex. I just went with vertex bc I had good experience with their products.Geo makes a great unit