It is difficult to give a definite answer about which grandma's house is the best, because everyone has different tastes and preferences. But on the whole, grandma's restaurant has a good environment, thoughtful service and stable food quality. If you want to try grandma's house, you can try to go to a shop near you and taste their food yourself so as to make your own judgment.
In addition, there are many other gourmet restaurants in Hangzhou, such as Louwailou and Xinbai Road, which also offer exquisite Hangzhou cuisine. If you like Hangzhou food, you can also try these restaurants.