What we can say about the S2S desk is that it is based on a very commonly used Jiecang electric base (made in China) and utilizes a no-frills conventional high-pressure laminated tabletop. Ergoprise seems to have shifted the spotlight to their new Uprise desk lately, which is based on another Chinese-made electric base. For about the same money you can get a similar desk from Ergoprise's direct competitors (e.g. the HumanSolution Uplift 900 or ErgoDepot's Jarvis Desk), which are also based on the same Jiecang Chinese base.
Jiecang Electric Standing Desk Base Review (UpLift Desk Version)
If you're thinking about putting your standing desk together DIY style, then you've got a lot of choices in standalone bases that you can buy to match up with a desktop. The Jiecang Linear Motion Technology Company of Zhiejang, China, is one of the long-time producers of electric standing desk bases, used more than any other base by popular online sellers of standing desks, including GeekDesk, S2S (sold by Ergoprise), Jarvis (sold by Fully) and UpLift (sold by TheHumanSolution) to name but a few.