The Gem was a gem for us. Having lived in Oakland before, the neighborhood is a good location for getting around the East Bay or into the city (San Francisco). It's a reasonable walk to BART and there are plenty of buses as well so no need for a car.
In the neighborhood itself there are some great places to grab food or drink, including a new biergarten. I personally recommend Mama Royal's, Homeroom and Clove & Hoof.
The home itself is cute and spacious by Oakland standards. It was clean and looked exactly like the photos. The bathroom was clean and had great water pressure which is hit or miss in the Bay Area. All of the typical amenities are available including a nice size closet and Venus & Michael were kind enough to leave us some munchies for breakfast.
There aren't really any negatives. There is some noise from the unit above, but nothing outside of the normal foot traffic you hear from an overhead apartment. We also happened to be there during the rains so we did see ants as they shared in their listing, but they were tiny and we were fine using the non-toxic spray they provided.
Everything was very secure and it was peaceful and quiet despite being in an urban, busy area.
We would stay again!