The lower unit is a basement/guest suite.

You don't ever want to double book and have to cancel one of them.And the guest giving a phone number in the first message like in your original post is against the rules and the guest knows it. 

Keep building on your progress and leveraging your Superhost status to attract more guests.

Like @Bruce Woodruff I prefer VRBO guests but I haven't had terrible luck with AirBNB guests.

@Marc Shin, Soundproofing is definitely something worth tackling for a short-term rental—it’ll keep your guests happy and help you avoid complaints.

I have studied things and I feel I would only make maybe an extra grand a year and frankly I don't want to squeeze every last time out of people coming for vacation.Most of our guests are regular people.

Many Airbnb guests will want common utilities unless it is in a remote are where you go as a sot to sleep while hiking the area. 

Since STR “lives” on reviews, being “right” because of the contract the guests signed might be the most expensive “right” you’ve ever experienced.So what’s left for the “wanna be” STR investor in today’s market?  

Airbnb operates as an interest-based algorithm, rewarding listings that grab attention and keep potential guests clicking.

Are there policies that protect against guest damages?