I traveled to Nepal twice, first time I went for a solo trip and the second time I took my parents. During my second trip, we stayed in Shankar hotel in Kathmandu. We stayed there for 3 nights.It was originally a palace built in 1894 for Gen. Jit Shumsher Rana and later on in 1964 converted into a hotel. 
I booked our rooms by sending a direct email to them and paid during our stay. The process of booking was smooth and I received a prompt reply from them. The check in process was smooth in Hotel Shankar Kathmandu. I booked two rooms and they gave us adjacent rooms, which was an advantage. The hotel is in Lazimpat near the main road but at the same time away from the hustle bustle of Kathmandu. 
The unique interior decor of the palace was preserved making the restaurant, lobby, and rooms. There were carved wooden panels on walls and at other places in corridors, which added to the decor of the hotel. The lobby area was fancy with enough chandeliers to give it royal look.
They presented us fresh flowers and fruit baskets, once we reached our rooms. Rooms were clean and they added all modern amenities for comfort. Beds were clean and comfortable, towels were fluffy. Housekeeping dept changed and cleaned our rooms with utmost satisfaction. The room had tea, coffee making facility and they promptly refilled the stock of tea & coffee. The room service was fast and friendly. The small refrigerator in our rooms was working fine.
The hotel pool was clean and well maintained. The small coffee shop near the pool in garden area was good to spend time while sipping our dose of caffeine.
Buffet breakfast was served in the grand dining hall, which was a ball room from olden days. The verity and quality of breakfast are good. There were many varieties of vegetarian and non-vegetarian items.
We had dinner twice in the hotel and it was good. They also have buffet dinner in the smaller dining hall and it was buzzing with people during our stay. The location of the hotel is good and there are some good restaurants near the hotel, maximum 10 mins walking distance. We ordered from room service once and their service was very prompt and food quality was excellent.
One thing I didn’t like was that elevator was not extended till dining hall, so one had to climb or descend the stairs to go to the dining area. My Mom has problem climbing stairs and it was uncomfortable for her. They have an elevator for rooms, I wonder why can’t they extend it to one more floor to the basement.
They have provided one day sight seeing a tour of Kathmandu with our booking, the vehicle they provided us was good but there was no guide or assistance from them. Secondly, we have to wait for more than half an hour for our vehicle to arrive, which was a let down considering the other services. 
There was a shop next to lobby area for souvenir shopping, some of the things were nice. The prices were on the higher side as compared to the local market.
The staff of Hotel Shankar Kathmandu prompt and always attended us with a big smile.
Love the architecture and decor of the hotel. Looks like an old colonial building!
Yes, its a beautiful building.