Truly sorry about that...
Whenever anyone begins with "That site turned me off," it may be a good idea to hear their feedback, but it does not necessarily follow that they deserve an apology or that you need to act upon that feedback. I think you're dealing with an outlier, and we already know what trying to please them can lead to.
If anyone has suggestions for equally good replacements, I'm fine with that too.
Don't change a thing.
As Edward Everett said to Abraham Lincoln at Gettysburg: "I should be glad, if I could flatter myself that I came as near to the central idea of the occasion, in two hours, as you did in two minutes."