Issue
The 30 day free trial is way too short.
Reason
It's not long enough for the user to get past all the workarounds and temporary fixes, but IS long enough for the user to get thoroughly frustrated with unknown processes, and techniques. Yes, the user could get training, and be expected to learn everything in 4 days, but we all know you don't learn AS in 4 days.
Solution
Increase the free trial to 180 days this way the user gets to learn AS without the stress of the time constrain, god knows it's bad enough getting pressure from clients and bosses. The user gets to create a project or maybe more, and get the wrinkles ironed out.
NOTES
It costs Autodesk nothing, but gains disillusioned ex-users, who in 30 days think they know all about AS and judge it accordingly. Autodesk has everything to gain & nothing to lose. As an experiment it could be tried, for a year.
After 180 days the user is now dependant on the software, have solved most of the wrinkles and have little choice but to subscribe or go back to their previous methods.
Autodesk may think they only have to cater for the medium to large business enterprises, but a large enough proportion of large businesses subcontract their work out to small businesses. The small businesses can't usually drop everything and throw all their time and efforts into new software, working practices, etc. They need to continue to make the deadlines both jobwise and finacially. But given more time they could.