I loved staying at Marilyn's place in Echo Park. If you don't have a car, the location can't be beat. Walkable to a Walgreens, Vons (grocery store), restaurants, bars, etc. If you do have a car, street parking is fairly easy to find though you may circle the block one or twice if you're trying to park later in the evening.
We stayed for a week with our two cats while we moved from NY to California and there was more than enough room for two humans, two furry friends (and their litter box) and a LOT of big suitcases. Though we didn't spend too much time in the apartment, it was very comfortable and I would definitely stay there again.