I use these daily, I keep a running journal of daily general work, and I have separate planners designated for large projects I am working on.
The PREVIOUS product used to be perforated with 30 nice large holes just a hair over 5mm in diameter, with 3mm of paper between the holes and 3mm from the left edge to the spiral binding. The metal spiral binding was just shy of 2cm wide and sturdy. The paper was slightly dull (not shiny/bright), and the print on the paper was less than perfect quality (the print on the sheets looked a little faded, like a stamp just starting to run out of ink). That said, this was my favorite planner in the WORLD!
The new product, that I just received in my most recent order less than a month ago, has greatly declined in quality. There are now 38 perforations that are about 3.5mm in diameter with only 2mm paper between the holes and 2mm along the left edge of the perforation. The metal spiral that binds the notebook is just barely over 1cm in diameter, so good luck fitting a quality pen in there. The sheets stick together TERRIBLY, and so while the paper is shiny and much brighter white, and the print ("prepared by, date, project action notes, etc.") is more sharp, the sheets sticking together GREATLY overpowers the improvement in the print on the sheets. In order to turn a page, you pretty much end up tearing the sheet apart along the spiral binding holes, because the paper is weak and the holes are now so close together along the binding that it just easily tears.
So, I wish I could go back and order a case of the old version of these, because the "improvements" made have made me want to find an alternative to use in this product's place.