When BotEngine was released, I was an instant customer. I built and deployed bots on at least four other platforms while waiting for BotEngine and every one of those platforms was problematic. Either they weren't reliable and would malfunction without warning, or they were free and then not free and then kind of free and then not, etc, so i would gladly recommend.
IBM Watson Conversation is a developer friendly platform that quickly builds and deploys chatbots and virtual agents across a variety of channels, including messaging platforms, mobile devices and even robots. IBM Watson Conversation is easy to begin with and easy to use. Users also get to enjoy the fast speeds of integrating across networks, channels and environments. IBM Watson Conversation Is also robust and secure. IBM protects your own data and privacy enabling users to opt out of data sharing. The enterprise grade feature provides users with a reliable infrastructure that scales with individual use cases. IBM Watson Conversation enables…

Cons: Botengine has reduced the workload on the helpdesk department . However ,I fear we may come one day have an advanced Botengine ,years down the line ; which is able to respond to the current complex queries we respond to and thus when that day comes , why would my employer keep me at the job ,when a Bot can do a better job ,without ever getting tired?