@Deryl3 All hosts, just like all guests, start out their accounts with no reviews. So if no one takes a chance on a new host or a new guest, there wouldn't be any booking platform at all.
As long as you found this listing on the official Airbnb site, not some other place, why not just send the host a message to get a feel for him/her. As a host I've accepted lots of new guests with no reviews- my criteria is that they communicate well and in a timely fashion, and that it's obvious that they have throroughly read the listing description and understand what they are booking.
Some new hosts are unaware that a 20% discount has been applied to their first 3 bookings (they can opt not to have this, but not if they aren't aware), they may think that they should follow Airbnb's price tips, which are absurdly low, or they may have smart pricing on by default, which could set a lower price than what they would like. And many new hosts are willing to book out for a cheap price until they get the first few reviews. So any of those things could lead to what seems like an unbelievably great price.
Communicate with the host by sending an Inquiry, introduce yourself, say why you are travelling to their area, ask a question if you have one that's not answered by reading the listing description, and you may get a lovely response that sets your mind at ease.
But if you found this place somewhere other than on the official Airbnb site, it could be a scam.