I can vouch for Ethan and say he has personally emailed me a few times to let me know how things are going (with regards to some of my suggestions) and I can tell you he generally cares.
I mean, I don't know him outside of a few email transactions but in any case, he either truly cares or is really good at faking his authenticity, I will go with the former. This would be the reason I recommended his service and the reason I am trying to utilize it at my current place of employment. (head office is not very quick on approvals)
I don't suppose you're going to publish a list of your clients? Maybe for a fee?