I have stayed at The Castillo several times, and am never disappointed. The hotel is found in Barrio Amon, and although frequented by a good bunch of guys from Canada and the US, there are often back packers and budget hotel seekers to be found at the back bar or enjoying the light continental (included) breakfast. The hotel is broken into the older mansion and a newer "motel style" building, with a central courtyard and back bar which is open at noon except Sunday (but that may change). Air con units can be found in every room, but not really necessary, as the ceiling fans and moderate climate make sleeping easy. A mix of 2 doubles, queens, and a few king beds can be had, full bath with shower and plenty of hot water is the norm. Service is top notch, as anything that's not right, the front desk will sort out. The hotel doesn't have parking, but arrangements at a local and secure lot can be had. Rates are about $70US depending on if you pay cash or card, or if the place fills up..and it does on long weekends. There is wifi at no cost, and advice is always free. The hotel is walking distance to most places in SJ Centro, with a few decent retaurants like Lukas, Tin Jo and others within an easy and inexpensive cab ride. Security is good, and the hotel can arrange a shuttle back to the airport (or for pick up) and if you want tours or to experience the out-of-town. I find The Castillo a place that knows my name and treats me fair, so I don't look elsewhere, but the experience will be the same even if it's your first visit.
Ask for a room out back, starting at #14 to #23 if you can
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