We lived our stay here. The guest house is a great size for a couple, and very nicely decorated. All kitchen essentials are provided, in case you want to eat in. Check in was a breeze and Greta responded promptly to our queiries. The bed is amazingly comfortable too!
We would suggest having a car, as is the case in most of LA. There are some great eating and shopping spots within walking distance though, and a car isn't essential if you are interested in just checking out Echo Park. We would highly recommend staying here!