Look people, they don't have a "state of the art clean room". That's just marketing talk on their site. It's just a small home-based business. But don't take my word for it, they said it themselves:
I don't have anything against startup or home-based businesses. I wish any entrepreneur success. That doesn't mean I'm going to entrust my Mac to them. It's a choice. If you want to take the risk, I'm sure they'll be happy to get your business. It is a risk. Even if they're completely honest in their dealings, they aren't as well-equipped, knowledgeable, secure and reliable as some more well-established companies. While it may not be a scam, I will personally pass on doing business with them.
If they are reputable, it is a risk but they said the same about Apple thirty odd years ago. Two guys in a garage, no way they said. They didn't have a clean room either. Now look at them. I actually root for the small businesses.
My business does revenue in the millions but a am not filthy rich. Well off yes, supreme wealth no. I have a medium to large business and I had to struggle so I know what it is like. You build a good reputation regardless of resources and are honest and stand by the work you do the rest will fall into place.
Sometimes small business are better because they go the extra mile because they want that word of mouth 'business return' which is essentially free marketing, and also the best kind to have.