We had a great time at Emma's; the space is adorable and in a fantastic location for the price (there is a TRADER JOE'S ACROSS THE STREET!). Emma is a fantastic host as well, and really goes the extra mile when it comes to customer service!
Just one caveat for taller folks-- I am 6'3 and my wife is 5'11. Because of this, there were several lights hanging at face height throughout the unit, which meant a lot of bonked heads. Also, the shower ceiling is also very low, so taking a shower was very difficult. Just be aware that you'll probably need to do a lot of squatting and ducking if you're vertically gifted like us!
Still, we'd highly recommend Emma as a host for your next PDX trip. Thanks again!