Hola Inma,
Regarding the sentence "¿A quién no le gustaría quedarse en un lugar así? With the meaning "who would not like to stay in a place like this" I expected that the subjunctive may be needed, though exactly how this would work with the conditional is beyond me. Perhaps the inference is that absolutely nobody would refuse to stay there but I am speculating. Can you help?
Saludos
John