Come for a meal right after visiting Kielce Historical Museum (Muzeum Historii Kielc). This restaurant is an ideal choice if you are in the mood for the Japanese cuisine. Do not leave without tasting good nigiri and nicely cooked ramen. Sushiya will offer you delicious ale or good wine. Drink the great tea offered here.
You will definitely like the lovely atmosphere. On TripAdvisor, people say that this place is worth the 4.5 star rating.