Mark's EDiT 2019 Planner

From The Manufacturer: 
This versatile one-page-per-day planner works just as well for journaling as it does for personal, school, and work scheduling. It features a flexible dotted line page style that makes it easy to plan out your schedule, write notes, sketch, draw diagrams, and divide the page into sections.

Pros:

• It's like a hobonichi techo, but has less added stuff per page
• Specifically, instead of a quote, there is a section with check boxes to put in "TO-DO" items
• The paper is very high quality.  
• My guess is that it is 52 GSM Tomoe River paper based on its thinness and fountain pen friendliness.  I couldn't confirm this guess, however.  The manufacturer and multiple sellers just list it as, "high quality Japanese paper."
• The notebook offers a page for each day of the year without being unwieldy.  This is mostly a function of the aforementioned high-quality paper.
• The included cover held up well over the year.  I could easily reuse it.  The added bulk also helped keep pages from being wrinkled or folded unnecessarily.
• With that being said, the cover is fairly bulky; with cover, the B6 notebook was closer to A5 in size.  Also, the zipper doesn't play nice with the notebook's ribbons; a few months into the year, I just stopped zipping up the cover.
• Two ribbons are included in the notebook (though I would've welcomed more).
• There are lots of little touches that make the notebook convenient to use.  
• This includes, but is not limited to: a place to write the weather and temperature on each daily page, printing on the edge of the page that allows the user to ID the month at a glance, a few extra blank pages at the end of the notebook, a "contact information" page should the notebook ever be lost, etc.
• Though the product is designed primarily for the Japanese market, I had no trouble using it.

Cons: 

• When I purchased my 2019 planner, there were no "understated," options for covers.  I wasn't bothered by this, but if you need something that's "stealthy," you may need to purchase your own cover (which is an added cost). 
• This particular brand can be hard to purchase at a reasonable cost.  Since they are meant for the Japanese market, it can be a pain to purchase a new refill each year.
• EX: Amazon (or an Amazon seller, anyway) is currently selling this product for over $80.  This includes a cover, but that's nothing to sneeze at. 
• Some may balk at the price, especially if they don't need a ready-made planner solution or if they won't use the notebook's various features. 
• For my part, given the paper quality, relative compactness, and durability, I think the price is reasonable.  

Conclusion:
This planner was a winner for me.  It performed my essential tasks well (e.g. being fountain pen friendly, having a page for each day of the year, being durable enough to last the year, and not being too bulky given how much info it holds).  In my eyes, it also performed every other task competently or better (e.g. enough ribbons, enough non-intrusive extra features, enough space per page, etc).  I've already purchased a planner for 2020, and surprising no one, it's another Mark's.  Though my 2020 planner was a bit of a pain to find, I'm confident it was worth the search.