Outcomes of the satisfaction surveys fron 2005 to 2007 are listed below:
Customer satisfaction with repairs
| | 2007 | 2006 | 2005 | | Surveys conducted | 2,948 | 2,577 | 967 |
| Response rate | 35.30% | 35.74% | 13% |
| Satisfied | 2880 (97.69%) | 2,450 (95.07%) | 813 (82.37%) |
| Disatisfied | 68 (2.31%) | 127 (4.93%) | 174 (17.63%) |