If the dates you are looking for are available, just go ahead and book! Nothing but spectacular all the way around. One of my fave air bnbs I've been to. Here are some of the not so obvious pluses
Easy check in, walkable to town and the waterfront, quiet and peaceful street, plush carpets for after along days hike, beautiful shower with good water pressure, well equipped and laid out kitchen.
Honestly it's almost a shame I didn't spend more time at the air bnb, but I looked forward to getting back 'home' after many many km's underfoot. If I ever get back to Te Anau I'll be looking to book again!