Ummm 成和道 dai pai dong, I practically grew up eating there.
My mother and one of her nursing graduate class mate ran a nursery at #3成和道 in the early 60's. Is the cafe still there? I remember hurrying my homework so I can get my treat of 菠蘿包 (Pineapple bun) and fresh 蛋撻(egg tarts) out of the oven at 4pm.

Happy Valley is a well respected neighbourhood. If you are looking for fun fun then Wan Chai is your place.

There was a saying that it is named Happy Valley due to the income for the government from RHKJC/HKJC.

For getting the directions to hotel there are many hotels which sound similiar to a HK taxi driver. Taxi drivers will get confused. Get the Chinese name printed out and hand it to the driver is the best. Get HK$ for taxi; there is usually no facilities in the cab to handle non-cash payments due to the cost of the equipment.