The ability of having my own custom landing page which I use for different promotions - this has helped me grow more revenue as well! Not anything specific about CF itself but rather its implementation by other people who are not very familiar with it or willing/able enough implement new features (like auto-renewing) etc..
so you have limited control over your account if something goes wrong like being shut down without warning after some years' usage? This does NOT help anyone's business at all!! So far we do see benefits from implementing cloudfunnells compared to traditional website hosting services such us godaddy where pricing plans start @ $10 per month+.