Can you trust your data on free services?
With a service like that, you are protected by consumer laws and a service license, when you access your website your data will be there, and being well served!
Sure, but I'm not expecting much from a free service in terms of uptime.
I wouldn't expect much more from a $1/month service, but I would expect better service.
GitHub Pages and AWS Free Tier are both effectively $0/month services with near 100% uptime.
i'm building it with easy of use on mind,
A totally clean interface, easy integration tools.
And of course, it will be focused on stability, your site will run on many servers with redundancy and user managed cache of nearly everything