Apartment is set in a quiet area, close to local amenities (Ralph's 24 hour supermarket, starbucks and several reasonably priced restaurants if you have a rental car.
Only consideration for elderly guest might be the stair access to the apartment may prove difficult for some. Its not long, probably 15-20 steps but just an advisory.
That said, your in a good location for the studio tours, local restaurants in studio city, Burbank and Glendale plus access to Universal is literally a 5 minute drive. If your comfortable about driving around LA parking can be a pain but I suggest the best parking app and gas buddy for cheap gas.