A big warning. I bought a copy of ON 1 2018, taking up their Christmas bumper offer, as I thought it would be useful for my wife who is just getting into editing. I was quite interested in it after trying out the free trial of the 2017 version last November. The program just isn't stable. It crashes with no reason e.g opening the editor. It is impossible to contact their support - the messaging system is configured to respond to specific problems and these don't include crashing. The novelty of submitting a crash report, you get invited to report back on each crash, in every 10 minutes (or less) of use has completely worn off. I am really annoyed. It isn't fit for purpose.