Thanks for your review.
I went to Staples to look for a replacement for our HP 6210 that suddenly felt apart and was very enthusiastic when I brought the HP 8600 home: easy to set up as a wireless printer, easy to install cartridges, fairly fast and quiet when printing regular documents, etc.
By then my wife attempted to print pictures on HP Advanced photo papers... Sadly it was a no go. Card stock was a no go too: the printer just cannot manage to grab the paper.
I ended up returning it and picking a HP C410A on clearance. It is not perfect either but it meets our requirements: all-in-one with real fax and ability to print pictures on HP Advanced photo paper or card stock...
So in short I completely agree with your review and wish I had read it earlier: this is not a good choice if you intend to print pictures.