I listened to this with my toddler who is not a massive fan of the show, but was interested enough to get very anxious when Norman got his head stuck in a railing. The production job is great, the voices and drama translate well to an audio only experience. The stories don't outstay their welcome for pre school listeners.
None of which matters if your child loves Fireman Sam. All you need to know in that case is that this CD will deliver a decent sized Sam fix which should keep them happy for the duration and won't drive you too insane through repeated listening.