Aside all that, as others mentioned, you didn't lend enough info to give any specific answer to your specific situation.

For my personal situation it wasn't worth it.

I could very well see people taking advantage of people in this situation, which would be a terrible thing to do.

Basically they'll come up with reasons as to why the "guarantee" doesn't apply to your situation. 

Just keep in mind each persons situation is completely different and small things can make a big difference in rates, fee's points, terms, etc. 

I have owned houses in 'floodzones' that would never flood except in a once in a lifetime situation.

If so, and this does happen during a guest stay, how would you handle the situation? 

Depending on your exact situation, you could likely get something closer to 7% and make these numbers work a little better.  

Regarding the condo/townhome situation in Fort Myers vs Bonita Springs, I would say the more important things to focus on would be the association fees charged, what is included in those, and the rental restrictions of the association.

It's dependent on your situation.