title: which bot solution I should use, Botframework or Composer tool or Power Virtual Agent? Is Power virtual agent costly?
body: <p>I already use bot framework using c# and hosted in azure. Our bot is integrated with LUIS and use a SharePoint list to answer FAQs. We want to upgrade our bot and we see now many new bot solutions like power virtual agent and composer. Is it worth to switch to any of the new solution? If yes, which one is better and what is the fees.</p>