I had a great 4 night stay here. This is a quiet place in a quiet residential neighborhood. I travelled solo but I think this place is perfect for one or two people (possibly even a third if they are a kid or just collapsible). I always wondered what it would be like to live in a tiny house. Yes, it's small but the layout is very open and things are where you expect them to be. If you are inclined to cook, the setup is perfectly adequate for simple meals and you'll have a nice view while you cook.
Like to read? They have an eclectic selection of books on hand for adults and young 'uns.
One tip: leave your mega suitcase at home. You will have a much easier time storing and using carry-on size bags here. The one time I didn't travel with my tiny bag and I stayed at the Tiny House. Doh!
I came to explore the residential neighborhoods, parks, local shops and restaurants. This is a great home base for that. The Hawthorne Street area alone can entertain/feed you for several days. There are great restaurants, bars, and shops all within easy walking distance on Hawthorne. Mt Tabor is practically at your doorstep if you want a nice walk, hike or run.
You don't need a car to explore the city from here. The Tiny House is close to several bus lines (the 71 at the corner will take you to the Max light rail station for the airport or downtown; walk a few blocks down the hill on Hawthorne and the 14 will take you to/from downtown). Easy peasy. For the times when you need a car, there are Car2go Smart cars everywhere.
Martin provides some good suggestions for restaurants and coffee to get you started. I would also recommend stopping in at the Tabor Bakery down the hill for great coffee, breads and light meals. Get a loaf and bring it back to eat later.
I hope that you enjoy your stay as much as I did. Stay weird Portland!