Background:  Sacral Nerve Stimulation (SNS) is an established treatment for faecal incontinence (FI) when conservative modalities have failed to restore continence. Aim:  This two-center study aimed to document functional outcome and its relationship to patient satisfaction. Patients/methods:  Patients treated with SNS for idiopathic FI in Aarhus, Denmark and Maastricht, The Netherlands were included. At most recent follow-up 127 patients (80%) were identified with active SNS-therapy. A questionnaire considering bowel habits, quality of life, self reported satisfaction and a 3-week bowel habit diary were mailed to these patients, 85% responded. Results:  Patient satisfaction was clearly related to number of FI episodes. Patients experiencing full continence were all satisfied, satisfaction rate dropped as FI episodes increased. But still forty-six percent of the patients with more FI episodes at follow-up than baseline were satisfied. Per-protocol-analysis resulted in a satisfaction rate of 57.3%. In total 74.7% of the patients with active SNS-therapy had ≥50% reduction in FI episodes, 10.3% of whom were dissatisfied after a median 46 months follow-up. Conclusions:  There is a clear relation between patient satisfaction and improved continence. A total of 57.3% of the patients offered SNS-therapy were satisfied at follow-up. However, 46% of the patients with more FI episodes at follow-up than baseline were satisfied. Therefore, functional outcome of SNS-therapy cannot be based only on bowel habit diaries and bowel scores.