BMW aftermarket window tint?

[drod]

I know we beat this horse to death... plenty of posts and I probably read them all...

i'm just looking to hear from those who have had it done by their dealer..

I am still waiting for delivery and would like to get the front sides to match the factory tint shade on the rears sides that comes with the premium pkg...

i'm reading great arguments for 50 and 35 as the ones to match... not sure who wins here...

but the dealer (or whoever they sub it to..) will guarrantee the job for life.

they will match the shade (whatever that is) and replace it, fix it, whatever, for free as long as you own the vehicle...

has anyone done this? I'm no expert in tinting so I wouldn't know what type, brand, shade, etc to request or expect...

don't care how much they charge as long as it's done right and they stand behind it...

thoughts?