Yes, it do matter.
I set camber for tire wear. If tire wear is even, you're quite sure you'll have maximum tire contact most of the time. And your tires will last longer
1,5-2,0 sound reasonably. It's important to have them the SAME, from side to side. Front/rear might differ, depending on amount of caster. More caster, less camber front. Less caster, more camber front.