This was a really nice space for me, and much bigger than what you'd get for the same price elsewhere. It is mostly an attic space, so if you're much taller than me (5'7"), prepare to duck a bit. The unit was very clean, and the bathroom looks recently updated with a really nice shower.
The location is good. Ballard is in walkable distance, and there are some nice shops and restaurants just a few blocks away. I got coffee at Cafe Pico almost every day, and they have outdoor seating which is nice during the pandemic.
The only downside I would say is that this is an attached unit, and sounds from the house are very audible in the unit. This is especially true in the downstairs room where there is a large gap under the (locked) door leading to the rest of the house. The sound was never a problem for me, but I was conscious of not making too much noise, especially since I had two young kids with me.
There is a microwave and small refrigerator/freezer, but no stove, so I didn't cook much. Also, the sink in the kitchenette is a bathroom sink and not a kitchen sink, so doing dishes is a bit awkward.