4 stars merely out of convenience.
Vons can be on the pricier side on a lot of their merchandise, but I find myself here 5 out of 7 days of the week. Why? It's around the corner from my place. I can usually find what I want here with no help from the staff. My only real frustration I experienced here was when I wanted to buy The Amazing Spiderman 2 on Blu-Ray (yes, they sell DVDs here). I went to go check out with the display copy in hand and they couldn't find where they kept the actual copies. Their excuse was that the manager recently moved stock items around and did not tell the staff where they were moved to. Other than that, I've had pretty decent experiences here and enjoy the fact that its 24/7. You don't understand how amazing that is when I need to make a late night run for ingredients and don't feel like driving down to Wal-Mart.
By the way, I am a Vons member. Gotta take advantage of some of the rare, good deals they have along with the gas.