The only stumbling block for me not ordering immediately is the iPhone 7 that is coming out in a couple of weeks time. It's rumoured that Apple has removed the headphone jack from iPhone 7. If that is truth (we'll find out by 6pm today uk time), how can we use any current iem with the iPhone 7?
Until I get an answer soon, I wouldn't be buying at the moment as I'll use the iPhone 7 85% of the time as my main dac
I'd skip the i-phone 7. Check out the LG V20. That thing is going to be an absolute beast. The iPhone 7 is 7 levels of stupid for ditching the 3.5mm jack. It is just a craven attempt to get you to buy into their ecosystem.
If you must use the iPhone 7 there are several bluetooth cable options available out there. Westone has an aptX one that is about $150. Astell & Kern and Noble both have Bluetooth receiver dongles. Lear has a Bluetooth cable with balanced amplification for under $100. The iPhone 7 also has a wired adaptor, but it makes it so you can't charge the phone and listen which is a pile of stupid.