Quite agree with you on cheap maintenance. I'm still servicing in Proton Center over 4 years.
The usable parts (engine oil, filter, washer, ATF) are the same price outside. Most probably could get cheaper by RM5 or so if know good supplier.
Labor proton charges 1h = RM60.
So for basic maintenance, labor hour required is 1hour. If they exceed 1 hour, they'll not charge you extra on labor.

Forget about Waja CPS and Gen2. These 2 models are horrid with endless problem.