Koisan Japanese Cuisine Restaurant in Orange

Went for lunch there and food was good.Portions pretty big. Friendly staff.

I ordered the beef sukiyaki and two sushi rolls. Sushi was great! I got spicy salmon and spicy scallop because the hostess suggested I get it. The side salad was great! Amazing dressing and so refreshing along with the miso soup. My main course is always my go to when I come here. The sukiyaki is so flavorful and fresh. Definitely would recommend this place

I never have to wait to eat here. Food is delicious, fresh and great portions. Always am joyfully greeted by employees, especially the sushi chefs. There has never been a rushed feeling like some places can be, staff was attentive but let us have our time like a normal restaurant can be. Love it. Happy hour prices are great, can fill up on plenty of items. Love going here, I just need kids to like it too, too picky!

I have been wanting to try this place for a while. I stopped by today and found that it was a very pleasant atmosphere. I was greeted at the door by the waiter and seated. I ordered the special Bento box and asked the waiter. What sashimi was served? He said albacore, salmon, and tuna. When he brought out the sashimi, it was yellowtail which I can’t stand, but I didn’t say anything and I wanted to try it anyway. Yep yellowtail is just not what I like. I’m not really a big fan of salmon either because I think it’s a little slimy but I can work with salmon . The tuna was fantastic! I also ordered the garlic albacore and was very happy with it. These folks do not slice sashimi thin like other places do who want to cut corners also, the green and red sauce with the sashimi was very tasty. The waiter encouraged me to order the teriyaki chicken, which was excellent . I did think the tempura shrimp was a little undercooked, but it was still very good. All in all it was a nice visit and I enjoyed my lunch. I will definitely go back, but not spend that kind of money I did today.

The rolls where kinda falling apart. Green tea was fine. At least the cup was super cute. Everything was tasty though. The brine for the pickled veggies is a bit in the stronger side. The host was super friendly and the staff is nice. Good amount of seating and clean. For two people we spent I think about 60 maybe a bit more.

Food and staff was amazing. The sauces complemented the flavor of the fish instead of covering them up like a lot of the trendy sushi restaurants weve been to recently. They had some live fish on the menu that came out beautifully presented and fresh. Service was polite and attentive. We got there very close to closing without realizing it and the staff was still polite even though they were probably tired and ready to go home for the day.

Kind staff, very attentive. However we got the lc1 and lc2 bento boxesSteak was so chewy and did not taste good I did not finish it. The special fatty yellowtail did not smell or taste good.The mango salmon roll was weird and left a funky taste in our mouths. Tried one piece each. Manager gave half off since it was missing the 2 pieces… so $7 for something we didn’t eat and hated.All in all the delicious items for us was the salad and tempura. That’s all.

They dont make places like this anymore with Japanese layout and design. Excellent service, food quality from fish to tempura, just excellent. Clean environment and good prices

Fresh and delicious with so many daily fish specials. This restuarant has remained in business for 36 years for a reason. Service was very good.

When we arrived there were 7 empty seats at the sushi bar and no one waiting in front of us but the wait to sit there was 15 minutes. Dont understand why and the draft beer was warm and flat. This place has some serious issues. Redeeming qualities: the sushi portions are big and the fish is fresh. Still dont think Ill be back.