The Metro Plaza is basically across the street from Union Staion about a Block away.EZ Walk(you can ask leave your Luggage in the Upstairs Metro Lounge).
It's an Older Hotel, nothing Fancy but Clean, and Reasonable.Area is very Safe, full of Tourists and Locals.
Also the First Site of LA,Olvera Market Square, is in front of Union Station with Souvenir Stands,Cafes and Old Buildings.Chinatown and Littld Tokyo are also around and close to Union Staion, but there's alot less Chinese and Japanese stuff than their used to be.
Philipe, the famous Deli Cafe is a block passed the Metro Plaza, Great Breakfasts and Dip Sandwiches.
Contact Metro Plaza for Reservations and Info, Google is your friend here.