I do have the software. I will give all the demos you want at the Aug. mtg. I have been using it since November and it is great. I really do like the thing. It works flawlessly. One feature that is really great is the logging of data. If you go out of town and come back to a mess, you can pull up the logs and see when it happened as usually, temp or pH would have been affected by whatever the problem was. It can also be set up so you can check in over the internet and see if a problem is developing and call a trusty MAAST friend to check it out. I would not do a tank without it.