I have 5% all the way around, and i think it looks good because my truck is black. In NYS any tint is illegal so you must think 35% is kind of light (for my likings) so i would go 20% at the least, and at that point the same cops that pull me over for 5% will pull you over for 20%. And also non matching tint looks lame imo.
And for 5% driving at night, cant see **** out the side when turning on a dark road, and yes I need to roll down the windows to use side mirrors if backing up. You get used to it and it's not a big of a deal.
As far as what looks good or not, who gives a **** what others think