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Is Silvia a good choice?

Hi All, We are quite new in AI as a development team and wanted to know which among Microsoft Bot framework, Api.ai, wit.ai, Watson or Silvia could be a good choice for building apps with conversational commerce capabilities that can integrate with native apps and websites. A solution with minimal coding needs.
We are evaluating Silvia and wanted to know your experience if any with the platform, and any recommendations.