We have done freemium route before and it's worked out great for us when freemium users contribute back in some way, rather than just being a demo account. For

We have done freemium route before and it's worked out great for us when freemium users contribute back in some way, rather than just being a demo account. For this we're thinking letting people use it for 30 days free of charge, if it's worth their time and money awesome, if not there's no obligation to pay.