Only if you are planning to stay in the room all day.
Good facilities - gym, pool, spa. Everything is very clean. Great restaurant, with very reasonable prices.
Location - it is not even in Kata, it is on a hill observing Kata, limited by highway so you cannot walk out, only take a taxi. Feels like a prison. Taxi prices and car rental prices in hotel are out of proportion. You can walk to a small taxi station 100 meters from the hotel and get twice cheaper price, and if you want to rent a vehicle do it in the town - cheaper and they do not try to take your passport (which is illegal by the way). Hotel suitable only for someone who is planning to stay in the hotel all day long.
When you stay at The Yama Hotel Phuket in Karon, you'll be by the ocean, within a 5-minute drive of Karon Beach and Kata Beach. Featured amenities include a computer station, express check-in, and express check-out. Event facilities at this hotel consist of a conference center and a meeting room. A roundtrip airport shuttle is provided for a surcharge (available 24 hours), and free self parking is available onsite.