|Webfaction payment history (Photo credit: yashh)|
But then, I changed my mind and thought that I would rather like to try heroku, because there's some buzz about them and they have good documentation. So, here is my experience with webfaction's cancellation process: I canceled and less than 1 hour later Paypal informed me that webfaction had refunded me due to their 60-day cost free cancellation program. Then, I received an email from webfaction's support team telling me that they were sad to see me go and that they thanked me for having provided feedback about the reasons why I left.
Conclusion: I have really appreciated my short experience with webfaction because they were professional and polite, and they hold the promise of their cost free cancellation guarantee. If, I am not satisfied with heroku, I will definitely come back to them.