I eating now 6 years long in Gintei restaurant and it never failed.
We went with customer, german visitors, friends and CEO's in this restaurant and everyone was so happy and want come back. We are never have health problems, it doesn't matter summer or winter. The restaurant decor is normal, but the food and drinks are very good. What can you do wrong with cold Tsingtao or Asahi beer. The Sake taste awesome. The most important issue is no one is kicking you out ! You can sit there talk with friend or business the whole night long. We are arriving in Gintei normally between 18.30-19.00 o'clock and never leaving before 21.30 o'clock. Most of the times Friday and Saturday is full packed. In the past it was incredible packed but after Japan i think many people were afraid. Now the thinking changed again and it will be like in the past. It is better to do a reservation. If you can except normal decor and decoration of the plates are not special for me this is the place. But is doesn't matter because the food is not very long on the plate. My favorites are salmon grilled, grilled codfish, sashimi tuna and salmon, beef, lamp, tiger roll. You can reorder anytime no problem, but you need eat it. No like in other restaurants where they are always stop bringing you food after a while. In winter it is a little bit cold, because the entrance door often opens and many people went out for smoking. The restaurant owner told me he will change the door very soon.

The first time I ate at Gintei the food was not bad, but considering it is +40RMB more than other well known Teppanyaki restaurants in Shanghai and only includes a limited selection of drinks, it is hard to see why the prices are so high. The decor is pretty grim and there are not enough seats around the hot plates. Go here if all other options are fully booked. The location is fairly convenient in Jingan.