This is a superb hostel located about two miles inland from the Pembrokeshire coastal path. It is the only five-star hostel in Britain and offers great accommodations. It has the standard youth hostel equipment - a games room, self catering kitchen, annex block for school or family groups, etc. All rooms are ensuite and there is a double room available, plus all rooms have their own TV. For £5 you can have a lovely dinner - we had cold turkey, potato salad, fresh green salad, coleslaw, and then raspberry cheesecake. The warden/owner Ken was very helpful and offered you more food, in fact he seemed upset we couldn't eat more. They also have a wide range of wines and beers for sale with your meal.
The hostel is a little remote and access without a car wouldn't be easy, the main road is over a mile walk away, along country lanes that would be very dark at night.
I'd recommend this hostel as a great base for exploring the surrounding area, with easy access to St. David's, Solva, and the beaches of Newgale.