I use a spreadsheet and do the work to put in real numbers including relevant competition to know what occupancy and nightly rates are for similar properties so that a mobile home isn't lumped into the mix.
I'd be interested in knowing how you do this if you don't mind sharing with me.
As an Engineer, I used spreadsheets everyday.
The easiest way is to google STR spreadsheet. There should be some in this forum also that people have uploaded.
Google the "enemy method " and you will find You tube videos that explain checking pricing of your potential comparable properties.