My business currently has almost 400 clients, most of whom have a website. In dealing with these people, I have found that 9 times out of 10, those who use "free" design end up with a poor-performing website. And I say "free" because there's no such thing as a free lunch. It might not cost you dollars but when you think about the amount of time you have to invest in it... And how much is your time worth?
I am not a web designer, by the way, but I've learnt it's better to save and pay someone to do the job properly and professionally. You need the site to look good, to be easy-to-navigate and to be found on the search engines. If you can do all that without spending a lot of your time, then great! Otherwise, it may be wise to remember that for a lot of people, a business's website is their first port of call and their first impression of you.
Just my opinion of course! (But I speak with a combination of 15 years' business experience and learning the hard way of trying to build a site myself...!)