I am going to explain my experience for your informatio:
I recently bought 8 NOS games from them, they shipped them promptly on Monday and I received them in due time today.
I sent them a long email with shipping request on padding etc, it was also included in the parcel received with few notes on it, which shows that they took the time to read it an tried to follow my instructions, good.
They also gave me a nice shipping discount, once I asked for a combined shipping quote. That was cool.
The games arrived inside a box full of padding peanuts, not a bubble of air was left inside the parcel. The games were individually wrapped in thrash plastic bags (unused of course) or thin wrapping paper, this offers no protection but it's a nice touch.
1) FF Euro, FF US, AOF Euro & AOf 2 Euro, WH2 Euro: These games have the factory seal sticker perfectly attached to their spine, the stichers show some dust or dirt under the part that always waves and never gets attached. The games look brand new to me and even have that classic smell to new. They are all basically mint, but one of them has light marks on the spine from a bump. I don't mean to open them and to me they are brand new, they look the same as any other brand new factory sealed NGH games I got through years.
2) Top Players Golf: This game has the seal not well attached, due to dust and dirt, this was already stated in the auction. On the inside the tray is carcked, the isntructions look 100% brand new and flawless, sure they are. The cartridge however has few slight marks on the front and back (sometimes brand new carts come with slight marks even on the front). However, when checking the game under intense light it seems that there are very ultra slight insertion marks. I bought NOS games in the past having slight marks, but it feels always fishy. I think this game maybe has been tested or something, definitely not well stored.
3) Voltage Fighter Gowkaizer Euro: The box has dust. I removed the insert and it has indentation or pressure marks, also the box shows marks, whcih are notable once you have removed the insert. The box has dust even inside it, which is weird and means that it has been previosuly opened . The instrustions look new, the cartridge looks new on the front and it has the classic friction marks on the back due to the SNK embossed logo (present in some new games), no insertion marks at all, it can be certainly brand new. Maybe this was used as a display copy?, game was not stored properly, it's not just taken aout from the master cardboardbox as the auction states.
4) World Heroes Perfect JPN: The insert also has pressure marks. The box also shows some marks as before (visible once the insert has been removed), the classic friction marks, making the transparent plastic to look worn away in some areas. The instructions are free of creases or other marks, but the edges are slightly white, otherwise would look pristine. I am not sure if the baggie is the original, because it's not made of the classic soft transparent plastic but it's made of a more rigid one, the same type of these collectors baggies to store CDs. The cartridge shows few friction marks on the back (again, brand new games may have them) and if checking the cartridge under intense light you may note a couple more very slight marks. The catridge is in great shape but also shows gentle insertion marks, so it has been played or at least tested, not just taken out of the master cardboard box as stated in the auction.
Conclusion: I think it's good to buy NOS from them as long as the game is perfectly sealed, and mostly if you don't mean to open it. Otherwise maybe you will be getting a game in great shape (and I am picky) but not really new.
PS: I took several pictures, do you want me to post them, anyone can upload them?