Because it's a proxy, Surfly seems like it would be great for demos or scheduled calls where you're able to send out a link to the customer. After the initial integration, Cohere works for users without any effort on their end.
Will check it (Cohere) out. Surfly initially started off only as a support tool though.
They have an Intercom like icon at the bottom right of the web app, via which one can share screens. It's used by a few airline companies, etc. to give hands on support to some of their older users I guess.
[1] - Surfly.com