Your comments

Not sure what you mean by good experiences. My company got a few staff in from an agency but they weren't very effective selling products

I dont mind having somewhere to hang. 

I realise that as an Australian I may be in a minority here but I found CeBIT a great conference for networking and leads.

Cafes are fine but whenever I get stuck like this I usually check out the local area for open foyers with lounges etc you can sit at. I think it is usually a bit more conducive to a meeting. I can usually explain using some buildings foyer away by saying my next meeting is with a client on a floor of the building.

Cafes are ok but with a nice foyer area with some open space it looks a little more corporate

Maybe workfrom site needs to expand on cafes