What do you like best?
I really like that I can easily customize the forms to match my clients' websites exactly. Also, there are so many options available regarding fields - what, where, how many, radio button, dropdown, etc. One of my clients especially like the ability to have an email sent not only to their business, but to the person filling out the form as well.
What do you dislike?
I do wish that we had the option for auto fill, but not by using LinkedIn (nothing against LinkedIn - I like it, but not everyone uses it, and so not all of the staff can auto fill their pay forms.) I vote for auto-fill for all!
What business problems are you solving with the product? What benefits have you realized?
As I mentioned in what I like best, my client really wanted their staff to receive a copy of the form they submit for pay. Their old form builder could not do that. Also, their old form builder could not be customized to match their website. 123FormBuilder is superior!