s other guests have noted, Olivia's place is super-convenient to the attractions at Seattle Center. Check-in was a breeze. The apartment's amenities had everything we needed for comfort and for fixing meals and snacks. Having no AC, the apartment was warm when we arrived (on a hot July day), but cooled down quite comfortably in the evenings.
We ate one meal at the 5-Point Cafe. Note to other guests: they have a happy hour menu in the mornings and in the early afternoon (4-6pm, as I recall). Make sure you look for that smaller menu posted at their tables; otherwise the humorous sign in the window (about cheating drunks and tourists) still rings true. :)
This location is very convenient for using public transportation. It was not a bad walk from the light rail station at Westlake along 5th Ave and it is a short walk from Olivia's to bus stops at Denny Way & Wall St (for northbound routes) or to 3rd Ave (for southbound routes). The website for local transit, tripplanner.kingcounty.gov is easy to use.
Also, Olivia's online guide to the area is helpful.