i thought going up one inch would give better grip and i like dark rims. my car is silver and the silver alloy rim does not look that good.
and i love the mazda 6 gun metal rim (dark colored rim).
this is the reason why i wanted to change.
if i buy an non oem rim i wont sell off my original oem rims so i think need to fork out more for the lighter non oem rims
i thought pushing my oem and getting another oem rim in return.
my tyres are still new (10 months old car only)

but i am confuse whether is it worth it or not. thats y wanted ask what you guys think about it

Have to agree with you on the comfort and ease of use of EPB. Furthermore it saves space plus other clever stuff like auto hill brake, auto release, etc etc etc that make driving much much easier. When I test-drove cars that have them, wowwwww veli nice 

I'm just not convinced yet with the reliability. I have family members and older friends with upscale German cars that had the EPBs suddenly rosak out of the blue.

However this is a move in the right direction for Mazda IMO. In 5-10 years it will probably become a standard feature. Just I don't trust the tech yet for at least 5 years. Same with GVC. Wait for the public 'beta testers' first for them to make the tech more reliable and more importantly, cheaper hehe

Hopefully I'm wrong about the EPB reliability (this is Mazda we're talking about, reliable brand)...we'll see.

Are you sure it's merely a software? I thought the hardware would be integrated with it like a firmware.