The site has a clean modern design. Which is nice to see, sites with poor design make me wonder what else they skimp on. For me the ideal sample would have a variety of shapes, slopes, angles, rounded portions, overhangs, etc. so that the resolution can get the "fingernail" test on a variety of surfaces. A sample should showcase how well your printers do the tough stuff, not just some cheesy robot or something that is easy to print.