I love receiving emails like this.
I use you app for months but I recently discover an old feature of your app that make it my very favorite app : when I launch a son or a playlist in Apple app, I just have to open your app to have it run on yours with lyrics in the very good order!! That make it the most user friendly lyrics app of the world! I still recommend it in many forum dealing with lyrics in iPad. I want to donate for all this. Do you have a Paypal account?
He even offered to donate to my Paypal account. Great gesture!