I received the hardcover books today (prime shipping). I also picked up the problem book. As a basis for comparison, I used the 1966 edition that I also own. I picked up the new set as FLP set are among some of my most favorite physics books and I wanted to own it in a relatively error free version. I read the FLP long ago and now wanted to read it again using the new edition.
Here is my assessment of the quality of printing of the new Millennium edition putting is side by side with the 1966 edition. The binding is quite nice and the books are good looking. The pages are not glossy at all but the quality of paper is not great. The print however is not good at all. The letters are 'thin' and rickety and harder to read compared to the original red edition that has nice thick bold black letters printed. They are readable if direct light is shining on them, however, they do cause eye strain and require effort to read. All FLPs (old and new editions) have a lot of room on the right margin and this is nothing new. However, the left margin for the Millennium edition is too close to the spine making it awkward to read. The pictures are however, nicely done and so are the math, the formulas, and the equations. In short, the printing of the Millennium edition does not do justice to the excellent content. My advice for People who are contemplating purchasing the new millennium edition is to skip it and try to acquire one of the older versions in good condition and deal with the errata online. I have not decided yet whether to keep mine or send it back. I love FLP but the printing quality of the Millennium edition does leave a bad taste in mouth. I wanted to leave less than 3 stars for my review but it would not be fair to do so because of the excellent content.