Great place to stay, and definitely saving the link for the next time I'm in Portland! The interior is bright and warm, with more than enough space for us (we kept the Murphy bed down the entire time as a result, but if you raise it up you'd end up with even more space). Everything was clean, and the heat works very well (great for cold autumn nights).
The backshack is walking distance to a lot of shops and foodstuffs (including Blue Star donuts), and downtown Portland and lots of hiking/natural spaces are easily accessible as well (we took short rideshare trips there since the southern points were a few miles away). Since we arrived later than expected and left pretty early a few days later, the clear check-in/check-out instructions and being able to do so on your own time via lockbox was a major plus.