We purchased a MARS subscription to evaluate it last summer. It lacked the features we had purchased it for. Namely, we were interested in video simulation features and the companion app which were still unavailable. So, I cancelled the subscription. Or so I thought. I just noticed that three months later we are still being billed. Upon contacting support to rectify this error, I am told that we are locked into a 12 month subscription and that I should read the license agreement. For software we can't use because it doesn't yet have the features it promised! This is a total garbage policy. MARS is still a work in progress. And I would have never signed us up for a subscription if I thought we couldn't cancel it. $600 is a big deal to our small studio.