Jesse, I just built R5-D4 the other day, and swore I took a pic on Twitter but now don't see it so I'll do that and link it in here when I get some time. I compared it to Bossk, as that's my only 6" guy, so I just thought I'd say it may not be exactly like the R2 from Hasbro.
The figures require a little more than just slap em together, if you want perfection.
There ARE stickers, which are quality stickers not thick paper ones, but there are waterslide decals too which would look more professional but need "sealed" ultimately for any kind of durability. Waterslide decals can get pretty complex with model builds as there is setting solutions and stuff you can get into. R5's look pretty crazy complex too. But then there's stickers too so whatever.
Also, there IS some painting required for "perfection". It's minor but I believe those tools are just molded silver, no paint on them. Not much painting, but if you want it perfect there is some. And weathering of course but these days Hasbro doesn't weather stuff either.
The figures are great though when they're built. Not complex, all snap together (though I recommend good nippers and a good X-acto to do quality part removable/clean up). They are poseable, come with a black base (each) and are generally cool.