since after 3 free servicing by TCM, i have been visiting AS Ubi too, no bad, and their mech are friendly.
They also have the tools for our nissan OBD reading, able to adjust/reset ECU, not many other workshop able to connect to our OBD, their tools(other brand) are unable to gets any reading.
End of servicing, their will provide the reports of ur ECU reading from their OBD tool.