Unless it's been edited, your only comment regarding the food (review) was "Nothing has changed except their mustard seemed to be much less volatile than I remember it used to be." My thought is that it must have something going for to be rated #5 of the 8310 restaurants in LA based on 1,600+ reviews on Trip Advisor. Plan to find out for myself in about 10 days. The Metro Plaza certainly isn't swanky but looked good enough for me, so I booked it. The wife & I have stayed in some genuine dumps over the years. It'll do.
Try it and let us know what you think. Most locals that I ask think its overrated. Probably because we can get better french dips at restaurant such as Houston's etc which I think is much more flavorful. For sure its a touristy thing to do when your in the area. Sometimes even though you know your walking into a tourist trap you just have to try it because it famous. If you can try Cole's as well. They claim they were the first.
Everything said it was a tourist trap but I went anyways to the Raffles Hotel in Singapore and paid $20+ each USD for Singapore Sling. There was allegedly alcohol in it, which I could not taste or feel afterwards. My observation is that famous places are more of a hoopla from people out of town than locals who generally have a bleh attitude.