How many businesses operating in the "Accessories" category have received a "wonderful experience" review from users?
Accessories category refers to category_name = 'Accessories'; wonderful experience review refers to stars > 3;
SELECT COUNT(T2.business_id) FROM Categories AS T1 INNER JOIN Business_Categories AS T2 ON T1.category_id = T2.category_id INNER JOIN Business AS T3 ON T2.business_id = T3.business_id WHERE T3.stars > 3 AND T1.category_name LIKE 'Accessories'