Recently there's been a lot of talk about Hero 616s here and so I wanted to share my experience with you. Not going to go into too much detail, I'm leaving for vacation in two days but wanted to get this out there in case someone would find it helpful.
I ordered 3 616 Doctors from ebay seller 'mentag'. Three pens for US $12.90. When they finally arrived the first interesting thing was the packaging itself. See that there is no 'Doctor' mentioned anywhere on the package. I've contacted the seller and he explained that this is new packaging and that it does say Doctor on the back. I have translated what it says on the back and it does say, right above the barcode: "Big Hero 616 High Yijin Bi". So I guess that means it is a Jumbo. I was also assured that these indeed are genuine.
Don't know if you heard but for example my Hero 9018 with fude nib that I got earlier this year had a QR code that redirected me to a Hero verification site that checks whether the pen is genuine. There is also a secret code which you can get to by scraping a little film or layer of protective paint (similar to that used on lottery tickets). My 9018 is genuine according to this Hero site. This one, though it does have a QR code on the back of the package and it does have the secret code couldn't be verified, because it redirected me to a nonsense site. When I typed the 616 code to where I verified my 9018 it wouldn't verify it either.
The next images are of the pen itself. It does look OK. There are scratches on the pens straight out of the box but what can you do. The plastic is super cheap, not substantial in any way. Does have a hole in the back of the body. Filling system is ok, this is the bigger one, the 'Jumbo' size. It operates well, I was able to fill it easily, no problems there.
Lastly the cap. It looks worse in real life than on the photos I think. There is not that much definition in the engraving/stamping. It's shallower than looks here and also there is less shine, much less shine than it seems to be the case here.
That being said, writing is very nice, surprisingly so. I have only tried the black one so far with Noodler's Black (will test the others when I return from my vacation and post an update) but it writes beautifully and smoothly, it's wet enough and there are no issues with scratchiness or dripping, etc. There is just a tiny bit of line variation but I won't be pushing it at all so my tines remain aligned. All in all, it writes really well. No issues whatsoever. At least so far. Here is a quick writing sample.
Make of it what you will but my impressions are that these are as genuine as they get and yet they are not great, aside from the writing itself - which admittedly is indeed great. The build quality is sub-par in my opinion and for example Jinhao X750 is far superior to these pens.
Feel free to ask any questions, etc. and I hope some of you will find this post helpful.
edit: scroll down to reply #8 for more pics and further facts
Edited by EbonitePen, 21 July 2016 - 10:10.