If you plan to go cheap on furniture, decor, and photos, you won't compete with the other MTRs and you'll more likely wait longer to get that booking or get it at a lower rate.

As John mentioned, it is lot of money to invest fro STB, furnitures, decorations...I did a couple of online return estimator but not sure how much can we trust them?

We (my wife and I) went into the apartment and we were totally underwhelmed - the apartment was small, which we already knew, but it appeared even smaller than it really was because of the way the tenant had cramped an unnecessary amount of furniture and decorations into the place.

I will be happy to get you connected to my peer who does a nice job decorating vacation rental homes in Orlando area.

Unless you invest in new decor and put in some theming, your house will be viewed as budget accommodations and you'll get really low rates.

I also was interested in learning about owning a Short-Term Rental, since the owner is in charge of furnishing and decorating the home to make it appealing to renters.

I would recommend reaching out to an interior decorator in your area.

I have tenants in PP that have legitimately decorated their rentals, on a budget.  

Also, you'll find that a LOT - probably the majority right now - of listings on FF are one or both of the following: private room in a shared home or decorated like your grandma's house.

Look at your competition for ideas for your description and for decorating ideas.