I carry out a marketing survey about a new service, and I wonder what is the most appropriate expression for a title :

"**The use intention**" OR "**The intention of use**" ?

The question was "Do you intend to use this service?".

I have the same issue with this expression :

> 
> "**The equipments purchase intention**"
> 
> 
> "**The purchase intention of equipments**"
> 
> 
> "**The equipments intention of purchase**"
> 
> 
> 

I'm french, and am not that fluent in English.