Fast, Simple, Best, Lifetime support

There is not annual payment. Once you buy the premium, support team is online all the time. Their support is quicker than most of hosting providers and all of the theme or plugin supports. Also they are helpful to lead on other topics which WPFC does not cover.
There is only one drawback, if you use free version of Cloudflare, your optimized .webp extensioned images are not serviced somehow. If they can find a solution for this, there would not be no competition, I would simply say this is the best simply.