Generally speaking, Central Backpackers Oxford is well worth its price, especially considering its great location, tidy dorm and cozy beds, and its speedy and stable Wi-Fi.
The hostel is within a ten-minute walk (if you are carrying with you two bulky luggage cases; it's otherwise a five-minute walk) from the Gloucester Green Bus Station, so it would be very convenient if you were arriving at Oxford on buses (the Airline shuttle from the LHR airport). Although the entrance to the hostel -- and actually also its entire appearance from the outside when you are walking down the Park End Street -- is merely a commonly sized door like that of a private house (yes, you are not expecting any window or wall other than that), it's still easy to locate if you are alert to its big yellow sign. There are cafeterias and pubs around.
And since it's almost by the city center, you'll find lots of bus stops nearby to take you to almost everywhere you want in Oxford. What's even better is that there are two Chinese restaurants and a Chinese supermarket just within very short walking distance.
Rooms and Bathrooms
All the rooms are on the first floor and you need to climb about twenty stairs before check-in. The eight-bed dorm is just spacious enough for normal needs. Maybe a fully-packed, large luggage case won't fit under the bunk bed, but you can just stand it by the wall. You'll be given two "keys" upon check-in -- one actual key for the locker to store your personal stuff and the other swipecard to grant you access into the room. There is an extra note with a pin-code on it, which you'll need to input at the main entrance when you get back late at night. The sheet and pillow/duvet cases are clean. There are roughly four washrooms and three bathrooms in the hostel and they offer free clean towels for use in the shower. You have to use your own shampoo/shower gel though.
There is a kitchen, a TV room, and a shielded rooftop common room in the hostel. They offer most of the kitchen stuff (mugs, glasses, tableware) and you can actually cook in the kitchen. They also offer bread and peanut butter/strawberry jams, all free of charge, for the breakfast. One problem, though, there are flies flying around in the kitchen and there are more than one of them.
The staff are helpful and friendly -- one of the benefits of spending your night in such a backpackers is that you can always find interesting people with whom to talk!