Think it is not the dealer that matters.
It is the SA that matters.
You don't deal with the SA company. You deal with the SA.
If good SA, you don't need to worry about anything at all.
My SA was pretty good for its service although let me cut his komisen by 500.
He will tell me about the progress like bank loan approved, what rate, ask ok or not.
Then JPJ register there, he ask OK or not if today number start with 1/2/3.
Good dealers does not necessary mean that the SA that served you is equally good.
So go all ur nearby dealers and meet the SA.
Whichever gib u best price and service, thats the one.

Thanks for the advice. Most probably getting the SV CVT model from TTDI branch
Waiting period about 2 weeks, shorter than the rest. Btw, guys, what warranty will be voided if I change the HU and add component speakers?