Let me preface the following by saying
(100% truthfully) that
I have no affiliation with Unique Melody other than being a past customer;
nothing more, nothing less.
Although I haven't personally ordered/purchased through Stephen (only because I don't live in the USA), I have had occasion to privately converse with him from time to time, about UM products, and he has always been polite, knowledgeable and helpful.
I will also add that if any of you wish to know if Stephen (
custom-iem.com) has a good reputation as a UM dealer, just have a search through the UM threads on Head-fi, for the past 18 months, and you'll find many people have remarked upon his excellent level of customer service.
I have personally experienced excellent customer service from UM Global (
uniquemelody.co, who are based in Australia, and who are run by Matt).
It can be a little confusing for newcomers to the brand.
My understanding is that UM Global (based in Australia) have a global distribution deal
(outside of China), with Unique Melody (the actual manufacturer in China), and that other dealers (e.g. in UK etc.) liase with UM Global (based in Australia), because of their global distribution deal.
Stephen, in the USA, however, is independent of this and liases directly with Unique Melody (the actual manufacturer in China).
Naturally, because Matt and Stephen operate seperately from one another, they are, to a moderate degree, in competition with one another, and wish to clearly maintain their own professional identities, but they're both enthusiastic about UM products and about serving customers well.
If I am wrong about any of the above, please do correct me, Matt, or Stephen, but to sum up, for anyone new to Unique Melody products, both their sound quality and build quality are top-notch, easily on-par with their competitors' products, and whether you order through Matt or Stephen, you'll be in good hands.
I thoroughly enjoyed my UM Miracles
and plan to purchase a pair again at some point, to replace the pair I was forced to sell for financial reasons. That's about the highest recommendation any customer can give, really!