I want to start with the good: this place is a great deal for its location and amenities. It has a fully functional kitchen, a separate bedroom, great location in West Seattle, and super close to a bus stop that takes you directly into Seattle. Amanda and her husband are incredibly friendly and accommodating. They communicate quickly and are eager to make your stay more comfortable. In terms of their hosting qualities - they are 5 stars.
Now for the not-so-great. This place is a great deal, and you get what you pay for. It's in a basement, so there will be a handful of spiders who get in. The hosts have set up plenty of bug traps, though you will need to kill/remove a few you find wandering around. The bedroom had numerous webs and spiders hanging out in the corner by the lamp and in the top corners of the room. To be fair, the hosts had been away when we first arrived, so maybe they hadn't had a chance to do as thorough of a dusting as usual, but we found several big spiders living and moving around in the room and in the webs. Spiders and little critters like that are expected in a basement apartment, but there are some additional steps (dusting of webs between guests) that can mitigate their impact.
The main reason we ended our reservation early was because the ceilings are low. We've stayed in some basement apartments in the past, and those were all tight, but manageable, for someone a couple of inches above 6 feet. For a majority of the rental, the ceiling height is ~6'4. However, the doorways in this rental were ~5'10, and there were protrusions from the ceiling (likely covered beams or vents) that reduced the ceiling height to ~5'10. While small doorways are not ideal but manageable, there was a covered beam in the bathroom that was in the middle of the room and shower. My friend hit his head on it multiple times when showering or turning around to grab his towel, which we determined was too big of a hazard on a slippery floor or when he was getting ready without his glasses. There was no mention of the lowered parts of the ceiling or short doorways when we booked the rental, so it was quite unfortunate when we arrived and realized the rental just wouldn't work for us. It seems that they've since added a mention of the height requirements for this rental, which is good to see.
My verdict: Amanda and her husband are great. The rental is a good deal if you are 5'10 or shorter and don't mind squishing a few spiders. I just wish that they had originally mentioned the low ceilings, beams, and doorways before we booked it.