What is a good STC?

Excuse me, could you please elaborate on what you mean by a "good STC"? Are you referring to a specific type of cryptocurrency token, perhaps a stablecoin? Or is it a question about evaluating the quality of a particular security token contract (STC) on a blockchain platform? If it's the latter, then a good STC would typically be one that adheres to industry best practices, is transparent in its code and operations, and offers investors a clear understanding of the underlying assets or value proposition being tokenized. It should also be legally compliant in the jurisdictions where it operates and have robust mechanisms in place to protect investor interests. Additionally, a good STC would be one that is actively traded on reputable exchanges, has a vibrant and engaged community of holders, and demonstrates a commitment to ongoing development and improvement. Ultimately, the quality of an STC will depend on the specific use case, team behind it, and market conditions at the time.