You do not have to use any Google ads in the advertising spaces if you do not want to. There is the option to do so, but it's entirely up to you.
You can certainly change the logo, default theme color and other options within the ClassiPress admin dashboard (you can check the
ClassiPress admin demo for more), and outside of that, our themes are not encrypted, so you are free to make other customizations if you wish.
Yes it's easy to use, you don't need any special editor to make minor code changes, this can be done with a normal txt file or in the WordPress editor (although you should always keep track of changes). How much coding knowledge you need depends on the customizations you wish to make, but if you're happy with the out of the box theme, you don't actually need coding knowledge.
Yes, our themes all have an option to moderate listings before they appear.
You can remove the footer credit and of course replace banners accordingly if you wish.
No problem, we're happy for you to ask questions so that you're sure about what you're buying. The best thing is to have a good look at the
demo to see how it looks/works by default and ask whatever you need to ask :)