This is a good thread and worth to keep updated.

Proton Edar @ Mutiara Damansara is getting so bad they are not even picking up phone calls for booking appts (03 7725 8228, 7726 9148). The only reason why I kept going to them all these years is because their location is closest to where I live and I can drop my car and walk to Ikea, Curve etc for shopping. The service duration can take from 9am - 4pm, most times your car is just left there sitting in the workshop.

Anyway I have had it with them. Will try this next and give my feedback later.
Senaxis Sdn Bhd
50 Jalan SS 26/11
Taman Mayang Jaya
47301 Petaling Jaya, Selangor
T: 03-7806 4654
T: 012-3283123

Here's my feedback after servicing my car:

Senaxis Sdn Bhd
50 Jalan SS26/11, Taman Mayang Jaya, 47301 Petaling Jaya, Selangor.
T: +603-7806 4654; Mobile: +6012-3283123
Sales Lady: Farah (quite friendly)

Description of Senaxis: The last corner lot in a row of shophouses. Along the same row are other car workshops, etc. Basically a light industrial area. Waiting area is either inside (aircon) or outside although the chairs are not so comfortable for long periods. The chairs outside are metal types. Free wifi.
Nearby: Right beside is a food court, walk further to find two other corner kopitiams with better food. Other shops include: minimart, 7-11, pet shop, fish aquarium shop, small handware shop, small IT/gadget shop, etc.

Service duration: 9.30am - 11.30am: Considered reasonable although car was left unattended for an hour. Actual generally servicing took less than one hour.

Change oil filter & drain oil......... 18.53
Change engine oil Petronas Pro Syn 800 SE 10W/30.......... 106.00
Labour........................ 53.00
Total.................. RM177.55