Loved my stay at Marco's. Came with three friends for a 10-day trip. Basic bathroom and kitchen amenities were provided, as well as additional extras such as beach chairs and blankets. We took advantage of all of these offerings, including dishwasher, washer/dryer, parking space and the private rooftop with fire pit. Some of us worked from home for part of the trip and found the wifi to be good and reliable. There is an outlet on the rooftop so you can also charge your phone/laptop up there while relaxing. I didn't see an outlet by the coffee shop decoration, but that's also a cute spot to work in!
Marco's home is only a short drive from Balboa Park and downtown San Diego. Our group actually ended up liking Hillcrest much more than downtown. There's many good restaurants and stores within walking distance.
Definitely recommend checking out Marco's place for awesome value, location, and host communication!