I had one of his for my TF10 (from when he was working with CHRIS_HIMSELF,) and it was great. When I sold my TF10 it went with it, and the buyer was quite happy. It had lasted with no issues nearly a year before I sold it (bought a Dunu 1K to replace it).
I just ordered a Pono balanced from him as well for my UERM. I'll be getting mine before H20 (hah!) as I live much closer to Ted. When you order, the site is a bit confusing. The Buy page is just a link to PayPal. Always make sure you email him to be sure he knows what you want (he has lots of options available, so you can fine tune your order). When I emailed him yesterday, around 4pm Pacific Time, he got back to me in five minutes. We agreed on what I needed, I paid via PayPal, and we touched base again. Great customer service from my experience.
And if you have a Pono, running it to your iem or can in balanced mode is really an eye-opener (to mix a metaphor). I first got my Moon Audio balanced cable for my Fidue A83 and it was unbelievable how rich and full the sound got while still keeping the basic sound sig. When I got my Shure 846 the connectors were the same, so I popped the cable on it and wow! You don't think it will do much and then you try it.
BTW, I'm selling my 846 and the Moon Audio cable if anyone is interested. Really good pairing. If you like bass, it will give you BASS with great mids and excellent treble (although not quite as much treble at the upper end as I like, hence the UERM). I haven't listed it yet, but if you are interested pm me.