Pretty good for a Subway
I stopped in here the other day because I was already parked nearby. I totally forget about the Subway here sometimes. I went in with my 3 year old at about 11:30am on a weekday. It was a little bit crowded but the line moved slowly.
My usual complaint about Subway is that sometimes you get way too much or way too little of a topping. I don't love the sandwiches enough to back seat drive the process so let it go unless they're about to put mayo on, which I don't like. I will say that the guy who made my sandwich did a good job and was even nice to my daughter.
It's very clean inside, not a ton of seating though. I always marvel at how cheap subway is. I think I got 3 sandwiches and a few bags of chips for like $12.
I think you are allowed to park in that VONS parking lot, though when the parking attendants are there, I sometimes get a dirty look going into that building.