^Just because something doesn't come from a big established company doesn't mean it might not be good. Look at audio equipment. Most of the best and most raved about have the sorriest looking websites and had nothing to go by except their product descriptions. Most of these small companies don't have that kind of money or know how, and spend it entirely on their products.
With that in mind, that particular site looks a little iffy. I do agree that the site needs some work, if anything they should at least make an ebay store(i know you said you saw them on ebay, but I searched ikohr to no avail). But the case itself looks nice. I hate the bulk of all these other clear cases that offer full protection, and this looks to solve it.