Lluvia's finished garage is a fine place to stay, especially if you're looking to explore Capitol Hill. I found it clean and well-appointed, and within easy walking distance of the main Capitol Hill strip. I did have a check-in snafu (I arrived very late, and wasn't able to enter the room for my first night), but Lluvia was very communicative and helpful, and made sure I was able to get in the next morning. As Lluvia notes in the listing, it is directly next to I-5, and the garage door isn't soundproofed, so highway noise might be an issue if you're a light sleeper. It was more like white noise to me, but Lluvia provides earplugs just in case.
Lluvia is a great host, and I would return in the future!