screw qx. I was a very long time customer - first one ever in their referral program. They hung me out to dry and locked me out of my program when I switched to service assistant after demoing their qx plat/enterprise. I flat told them it doesnt do a fraction of what I want to upgrade to.
Real green is the way to go if you want to focus on lawn apps. If you use it correctly, you will be amazed. We grew lawn app client count over 100% last year and expect to exceed 1000 clients in 2012. We were barely doing apps when we started using real green.