I would prefer Kata Palm Resort, you can find it on
Last minute Hotel Bookings in Thailand, Malaysia, Singapore & Bali with very competitive prices. During low season you can get a room for about 1000 baht incl breakfast for 2.
Think you can forget the pool, looks like a water hole with view to the street, but the rooms are of very good quality and the hotel is about 2 years old. Think the pool is ok, to wash away the salt water and sand when you come back from the beach.
The location is just across the street from Kata Beach Resort, just at the end of the small shopping alley. So you can reach the beach very easy, Kata Mama with its good food is nearby.