Sylvester's burgers was a staple when I was in college, and still a place I frequent when visiting the San Luis Obispo area to this day. They have a wide variety of burgers to choose from, as well as classic burger sides and shakes. The outside may look a little run down and old, but that's just the age of a local classic showing. Inside is eclectic, with a bunch of crazy hats welcoming you and photos all over the place of people coming for their free birthday burgers. The service here is relatively quick. Order at the counter and find a seat, then a staff member will bring you your food. I really love the Hana burger, and my husband likes the heart attack. Sylvester's offers several different sized burgers too, so there's the perfect size for every appetite. The onion rings are beer-battered and come in a huge portion, so make sure you're ready to share. Don't forget to get a size of their signature Sly sauce, too. Their shakes are delicious too, and they usually have a monthly special flavor. The prices have gone up in recent years, so it's definitely a good thing I don't live in the area anymore.

Great fries. Food served very quickly and hot. one of our party got a root beer float and said it was really good. The multiple patios are nice and we were able to bring our dogs. The burgers looked good but were only about average, but above average cost. I was hoping Sylvester's would be as good as Wee Shack.

Awesome burgers, onion rings, and staff. The guy at the register was super cool and helpful. It was a slow winter Wednesday so it was nice and quiet. This place gets rockin on a busy spring weekend. Took family members for their first time and boy were they impressed.

Have not been in many years due to not liking the greasy food. They have changed for the better!! Not drowning in grease anymore. Taste good. Fresh ingredients. Thank you

My daughter and I had just finished a mountain bike ride in nearby Montaña de Oro State Park and had previously researched dining options as we knew we'd be hungry and thirsty after our ride. There is a lot of seating both inside and outside the restaurant. Don't be mislead by the appearance of Sylvester's building; the food and service are excellent. The worker at the counter made sure we were aware of the specials of the day (which are very impressive, like half off drinks, including beer each Thursday). The menu options are many and you can order burger patties by size/weight and they come served with very fresh toppings. The server brought the food to our outside table very quickly. I was a bit surprised to see so many kids ride up on bicycles at different times (without parents) and order and enjoy their food. I had the 1/3 pound California burger and my daughter had the black bean California burger. We shared a basket of fries and couldn't even finish them even though they were perfectly cooked and quite tasty. Enjoy!

Super friendly and cool staff. Gunner will take care of ya! Best bacon burgers in town and the zucchini fries are to die for!!

We had a craving for sweet potato fries, and really there is no better place to go than a Sylvester. I've been to their locations in Grover Beach and Atascadero several times, this is the first visit to Los, but it does not disappoint. Such an eclectic interior, really sets the stage for Sylvester. I think more Homie than the one in Atascadero even. Friendly staff. As the governator says, I'll be back!

Elk burger was tasty and the hand dipped corn dog was really good. We liked the regular fries better than the garlic fries. Staff was attentive and the place had loud music which we liked and photos all over the walls.

My husband and I came here on May 21, 2024. Someone recommended this place to us so we decided to try it out. We arrived around 11:20 AM and there were a couple customers ahead of us and we noticed that the Fire Department was also there eating. We had our dogs with us and we sat outside. It was a cool day and it felt nice to sit outside in the sun. I ordered a 1/3 lb cheeseburger and my husband got a 1/2 lb cheeseburger. We shared an order of half onion rings and half fries. Looking at the time stamp of my photos, the food came out in 12 minutes (husband finished ordering at 11:24 AM and food came out at 11:36 AM). As I looked down at my burger which was open, I could see the juice running out of it, wow. I posted a video of it too lol. All the food was so hot so we could definitely tell it was just made. I literally had no complaints. We received friendly service, the food was delicious, loved the fries and the texture of the onion rings. If we're in the area again, this would be a place we would make a point of returning to as it was memorable.