I stayed at Mimi's for a full week and had everything I needed. It's perfect for 1, 2 adults and could easily accommodate a family with one small child.
If you are extra tall - this might not be a good choice as the ceilings were low (to be expected in a basement studio)
If you are bothered by people walking above you - just know it was very quiet every single night and I was never woken up by anyone upstairs.
If you are planning on doing a lot of cooking - might not be the optimal choice. I made simple meals and had everything I needed.
The location was great, the layout of the studio made it very functional. I will definitely stay here again when I come back to Portland. Thank you Mimi!