We loved our stay at this Air BnB. It is centrally located, right next to Union Station. Parking is underneath the building and is secure. It is spacious and has beautiful rooftop views of the city. It is close to the historic Olvera St./El Pueblo and many restaurants.
Light sleepers may object to the apartment being literally right next to the train tracks, however, this did not bother us. The building itself is quiet.
As with any place you stay in LA, you'll often smell marijuana as it is legal.
What is also important to know and understand about this Air BnB is that given its location (right next to Union Station), you will invariably encounter unhoused persons every single day. The overwhelming majority of encounters with homeless folks are uneventful, however, you may experience an interaction that requires you to cross the street or ask them to keep a distance from you. This will happen anywhere you stay in LA-proper given the state of homelessness in the city. We never felt unsafe walking our dogs at night and other building residents are quite friendly.