Superb

Extremely handy for the train,...

Liked: location was good
Disliked: noise, lack of fridge, kettle, very basic, and just not value for money

Very good

The room was nice and...

Liked: I liked the location, very near the city centre
Disliked: Not clean - there was still some garbage from previous people in my bed. Also, the bathroom was pretty dirty - the shower door was broken and didn't close properly. The sink was clogged and dirty.

Very good

Liked: The rooms were comfortable and the hostel was quiet at night ensuring a good nights sleep
Disliked: It was next to a busy road.

Very good

Liked: Affordable, clean, very close to the central station, and 24 hour reception -- perfect for our 4 AM arrival by overnight train
Disliked: Noisy and chaotic, but that was to be expected given that it's a hostel

Spend an extra five euros,...

Liked: Close to the station and not far from the old town.
Disliked: I often say you get what you pay for; but honestly here, you could have got more. The room was cold, the heating didn't work, the washroom was comically small, the staff were just on the right side of giving a damn, and you can get a lot better, in a nicer location, for basically the same price. These A&O hotels are supposed to be functional stop-overs, but this was barely functional.

Bad

Disliked: Being charged for the room I didn't stay in because the booking I made was for 2 rooms not 1. Then having to book elsewhere at the last minute.

Solid Choice for Couples

Liked: Comfortable twin beds in a well designed and appointed room. Very good location. 
Disliked: Check-in form is tedious.