Hey there mates!
I do not really know where this thread belongs, cause it a bit of a mishmash of a lot of stuff so I put it here.
I guess it is electronics related as much as it can be.
The Shipping ball:
From what it seems (and I have created an account for that reason) first order free shipping does not work right now.
I saw it also in a lot of youtube comments from people advertising JLCPCB. I do not know if anything else applies that I have not seen, but I´ll keep that one open for now.
The Paneling ball:
I do not know if that applied to manually paneled PCBs but if you select their panel service they do charge extra.
My PCB is 38mm x 18mm, so there is plenty of space for 10 PCBs per 100mm x 100mm boards, even with their 5mm edge rails.
Still with this option they seem to charge a bit shy of 12€ compared to 2€ "advertised" by the many Youtubers promoting their service.
The odd ball:
So with the panel 100 PCBs would cost around 12€. If I upload my board and ask for 100 pieces it costs 10€ but with 3 days of extra work.
And seriously though, if you don´t mind waiting these extra 3 days, you get fully routed boards for less!

It´s not that V-score is that a pain in the a$$ to clean, for 100 PCBs well it might be, but if you don´t mind the extra time then well...
Still for someone choosing the cheapest air-mail wouldn´t really mind.
The renegade ball:
Note that I am using Eagle v7.1.0 none of these online rubbish (well not until they offer major performance improvements)
Well, I have not tested it, still I have heard rumors and also checked with JLCPCB gerber viewer and it seems that they have absolutely no problem
accepting gerber files created by the SeeedStudio cam job!

I have not ordered the boards yet, but their gerber viewer is not complaining at all whatsoever!
This is something I really need to know to tell you the truth as I don´t what to break my head trying to export the milling layer correctly, which seems to work
totally perfect with the SeeedStudio cam job!
So what do you think about all this? What have your dealings been with JLCPCB if any?
I have ordered from SeeedStudio before but JLCPCB seems a bit more lucrative for my current design!
Cheers, Lefteris