20:28 Jun 18, 2010 

Also, regarding the apostrophe...

I wrote "40 hours of free call time", whereas your apostrophe could imply either "40 hours WORTH of call time" versus simply "40 hours of call time". I wasn't implying that there was anything "wrong"

17:22 Jun 18, 2010 

You're possibly reading too much into this. Rather than a list of pros and cons, it's a series of do's and dont's when it comes to writing to existing or potential clients. How to communicate effectively, in other words. So be specific by saying something like '40 uur gratis bellen' (and presumably expand on it in your letter), but avoid vague statements like 'bellen zonder zorgen'. And what's wrong with my apostrophe? ;-) Serves the same function as in "20 years' experience".

16:47 Jun 18, 2010 

A worry-free, carefree, hassle free calling plan is what everybody wants.

It would be a tactical error to state to your customers that the service you provide is "not a [fill_in_the_blank]-free calling plan" when these types of plans are everywhere on the market.

The only way I can see this snippet being justifiable copy is if in the broader scheme of your document, it is clear that their aim is to promote a more expensive calling plan, and are using this comparison to entice the customer to buy an unlimited calling plan as opposed to this 40-hour plan that they offer.