The floorless will most likely be her hang up at first, as it is with most who see these or read about them for the first time as culture has groomed us to have a closed up tent for camping.
But when we do picnics in the park, watch fire works at the 4th in the city park, play on slip and slides with kids, all these are done with no floor under us, just a ground cloth.
Maybe I should spread it out, put a chair, table bottle of wine, candles, picnic basket, hang a picture on the wall
lol
Seriously, you both will be impressed with the size of the Redcliffe and you will appreciate the light weight and ease of set up.
I had a guy come over to do the same thing you are after and his first impression was, dang that is huge.
With good Tyvek ground cloths, sleeping pads or cots, the fear of floorless begins to diminish, and then seeing a wood stove in there, one realizes this is really possible due to the floorless and the mind then says, I can handle that.