You are a wealth of info Canuck dude! Thank-you.
Does this go over a clean car, or does the finish need to prepared in any way?
Do you wax it after this or just use a quick detailed after you've done this?
Hey, no worries at all. Always glad to help.

Yes, when applying any LSP (last stage protection) such as waxes or sealants they are always applied on clean paint surfaces. Depending on the condition of your paint, you might need to have it claybarred to remove the bonded contaminants from your paint that a regular wash doesn't remove.
You can absolutely apply a wax after a sealant. The typical reason for applying a wax after a sealant is to give your paint some added depth and gloss that most sealants can't provide. Keep in mind though that it's always recommended to let your sealant cure for 24 hours before applying the wax over top of it. Also, never apply a wax before the sealant as a sealant will not bond to the wax.
And lastly, quick detailers are always recommended at the end as they will extend the life of whatever LSP you are using.