Yeah, they are just meh. For the price, and a little protection it's not bad. I have owned two in the past, usually use it for a couple of weeks until something else came along.
I've used them with the iPhone 4 and iPhone 5 - they're cheap, but not bad and have a good texture. They're no different than most other TPU cases (sort of squishy, thin, but won't get caught in your pockets), and have decent sized port cutouts. I did find that they did fit the devices extremely well.
They're very minimal, but they charge a more than fair price. It's a good little company, I have bought from them before. Now their iPad case genius cases are FANTASTIC