I've had this adapter for just over a month now and sadly, it hasn't been reliable. Sometimes it works, sometimes it doesn't. I haven't been able to figure out what the problem is. I've tried it with different cables, using different ports, on different computers and it never works all the time. It's almost like there is a short in the connection within the adapter. Either way, it has been a frustrating experience and I wouldn't recommend buying it.
UPDATE: The seller sent me a replacement adapter. It's been a week since I received it and so far it works. I will continue to test it and see if it lasts. The first adapter lasted about a month before it became completely unreliable. Hopefully this one will work better.
UPDATE 15/12/18: The replacement adapter that was sent to me has now stopped working. There’s clearly an issue here. It works until it doesn’t. Buy at your own risk.
It is the second time I buy from them. The product is durable and good-looking. I love their detailed design as well with small edge to help unplug smoothly. There is indeed some room to improve or maybe this is its feature. They made it firm and tight after plugging in my MacPro and you cannot plug both 2 adapters on the same side. However, considering the price, I cannot really ask for more. Their products are really durable. Even my official Apple cable worn out, their cases of cable still looked like a brand new one. I hope they can continue to maintain the quality.