Quality isn't as nice as Moleskine journals. The cover material (sort of glossy paper, cardstock) scuffs easily, and mine came scuffed up already. It also gets small creases along the spine which ruins the finish, and results in white cracks/lines. Also, the ink from the inside of the cover rubs off onto the front and back pages, discoloring those pages. The paper itself is thin enough to let the ink show through to the other side.
I didn't realize that the "Grow Planner" really is intended for a single grow cycle. It does have some support for multiple strains but it doesn't seem like that would be very useful unless all of them started at the same time and ended about the same time. This means you'd really need to get another planner for every grow. It seems especially limiting if you are growing Autoflowering plants with short seed-to-harvest times (like 60 days / 8 weeks), since the planner is for a 20 week grow.
The calendar is a nice feature for planning and the supply list could be interesting (to calculate cost of the specific grow), however, the "garden plan" and "weekly notes" sections don't seem very useful as designed.
The "garden plan" is meant to be a grid to draw out the physcial layout of your garden. Even if that were very useful (remember, for a single "grow") the grid dots are very dark and would be much more pleasant if instead they made it like graph paper (light lines).
Onto the "weekly notes" section. This 20 page section consists of a left page, with 1-inch tall rows, one for each day of a 7 day week, and a right page, which is a blank (lined) page for random notes. On the left side, each day's row has lines for recording humidities and temps as well as checkboxes for "Water Only", "Nutrients","Foliar", and "IPM". These options seem to only fit certain kinds of grows (soil/soilless vs hydro). In my opinion they are overly specific and clutter up the page for those who won't use them. I think the rows would be more useful without any checkboxes or prompts; simply a place to put notes specific to that day. And at that point, I'd rather not have the general weekly notes (right page) at all; give me more room for other grows within the same journal instead.
Overall I see what this product is trying to be but the quality of the materials and the limitations imposed by the formatting make it overpriced when you consider the per-grow cost.