Here’s my card. It is blank on the back. When I’m not using an estimate form that I print, I will write prices on the back of the card and give to my clients. I have not had any negative feedback on this. But of course, having an estimate format on the back could look more professional. …I like having my QR code on the card. This one goes to my Biz FB, My next set of cards will have a link to my new website.
I don’t think it really matters too much about the fancy phone number. I think that mostly comes in handy when you’re doing radio advertising. It gives them something easy to remember, otherwise people save cards or enter your contact info in their phones.
Just my $0.02