Heidi's place exceeded my expectations in every way. The space is extremely comfortable and stylish, very clean, and filled with thoughtful details and touches. Though we never met in person, Heidi was extremely responsive; and while she lives right next door, was completely unobtrusive. She even provided a bag of candy to hand out to neighborhood children on Halloween!
The neighborhood is great; quiet and low-key and just steps from Lake Merritt, which is always buzzing with activity. There's a great coffee shop just down the street, along with a laundromat that has a wash and fold service. Tons of great restaurants a short walk or drive away, either in downtown Oakland or along Grand Ave and Lakeshore (there's an excellent farmer's market on Grand on Saturdays, with lots of great vendors.)
The biggest testament to the quality of my stay at Heidi's is that I've already re-booked it for my next trip back to Oakland!