This is an amazing post. I've been at it for 7 years at FreshBooks...experience tells me patience is more valuable than most people building start ups want to believe.
we've changed prices four times over the years...your learn something new all the time, and we are constantly testing new things. Though...i'll tell you something...we tend to test a million different pricing page designs, and rarely change our whole pricing model. that said, the real lift comes from changing your model - not your design...and I guess this article proves that out as well.
At a risk of harming myself, you guys might be giving too much stuff away for free. I've been using Freshbooks for about a year for my small business, and got most of my business partners to send me invoices through Freshbooks.
We are all still using a free account, and never had a need to switch over. The free account just offers everything I need. I don't even know what would I get with premium account - I never felt a need to check it out.
you are asked to pay a monthly fee. you can use up to three for free for as long as you like, but as soon as you need to manager four at the same time you are prompted to a paying account.