The apartment was quite spacious, comfortable, and very nice. The bed was comfortable, the kitchen was very large, and the location was great. Great place for one person or a couple. While we were there, the wifi didn't work and we were internet-less the whole week. Luckily this wasn't a big issue.
Very close to the water, about a 5 minute walk from a bus and/or tram stop, but Eaux-Vives is not that central so if you stay out past the last bus, expect to walk home. Nothing in Geneva is that far, so it's a max 30 min walk (probably).