Location of this hotel is not very convenient. Actually Hostal Pachacutec is one of the last hotels towards the spring from Plaza You have to go towards north from Plaza de Armas. Remember you have to walk uphill here. This hotel is small, and cheap. You will find the basic amenities here. Rooms are comparatively spacious and clean. Staffs are really friendly here. Though they don't know much English.
If your room is at upstairs you may have to climb 4/5 flights of stairs. So be prepared for that. This hotel a bit quiet than other counterparts.