Upload & Sell: Off
I ordered a 24x36 sample of a black-and-white image. The print quality is quite good.
Three issues. First, the top two corners had suffered from a bit of chipping, probably when they folded the corners (the folds are very tight, and on the fold, some of the ink just seems to have come off). CG seems to have used a black magic marker to cure the right corner, which was mostly black anyway, and that wasn't noticeable until I inspected it very closely. The left corner was a dark-to-mid-tone grey, and they left it un-fixed, meaning the tightest exterior folds just had a little bit of white canvas. That was too visible, so I tried a bit of black magic marker, and smudged it a bit, and that mitigated the problem. It's not perfect, though, so I wouldn't deliver this to a client.
Second, there's a very small -- maybe two millimeter long and a thread's width -- red mark embedded in the canvas in the lower middle. It seems to have been introduced in production -- it looks like ink and I can't scrape it off with my fingernail. It is so small that you don't see it on big-picture examination, but again, I wouldn't deliver it to a client.
Third, the packaging provides inadequate protection from side damage. This is probably a key difference between a foam-core and a wood frame: the box was dented in the middle of the front-side corner, and that produced a 5mm dent in the front right part of the frame. The cardboard on the top and bottom of the packaging has a crush chamber, but the left and right don't, leaving it vulnerable to this kind of damage.
Any one of these problems would be enough not to deliver the product to a client.
I'm going to call them about these issues and I'll let you know how that goes.