Nice place, Echo Park is a beautiful location to be. Lots of local facilities, nice places to walk - we were here to visit California theme parks and San Diego Zoo - this was a pretty good spot to be to drive to all of these places.
Decent WiFi, free facilities to wash clothes, the studio itself is quirky, modern and unique - everything is one big room except the bathroom.
The TV has Chromecast setup too so you can stream video directly to the TV which is nice.
Only slight issue for some people is the geography in the area. Its hard to tell until you're there, but the house is on a reasonably steep hill. Might be tricky for disabled people, or people with kids.
Also was unsure if we were allowed to park on the gated driveway or not, so we parked on the street which is quite tricky due to a lot of others doing the same.
Overall had a great time, very nice studio and we'd stay again. The hosts were easy to deal with and helpful :)