I ordered a couple prints from Flickr's new print service to check out the quality. Here are my comments:

• Wait time: 8 days via USPS: 11/28 - submitted order; 11/30 - order shipped; 12/7 - order received; The package was delivered from Norcross, GA, so I'm assuming that the west coast has the longest wait.
• Package contents: index print, photos, Flickr sticker, "Inspected by #179" note.
• Print quality: The glossy 4x6 prints I ordered were printed on Fujifilm Fujicolor Crystal Archive paper, most likey by a Frontier laser system. The photo quality is what you'd expect from this standard pairing, and works great for snsapshot prints. No Ofoto-style color tweaking going on here.
• Metadata: Neither the index print or the text on the back of the photos show the title that you enter into Flickr, or the EXIF capture date. Only the date of development is printed, along with "Yahoo!_Flickr" on the back — not too helpful.

Overall, a well executed service that has been long awaited on Flickr. I'll probably try a matte print, and larger sizes soon.