Kefir Jars And or caps

Not to start another thread but I tried searching and haven’t found a thread or much mention of this. I’m about to start making kefir(grains are on there way). I like kefir and I’m convinced is easier than yogurt. But I saw all these fancy kefir making jars and or mason cap kits. Any experience with them? I’m sure they aren’t necessary but do they add convenience?

Try this
https://www.culturesforhealth.com/learn/milk-kefir/choosing-equipment-making-dairy-milk-kefir/
This is an interesting range of jars for a variety of tasks
https://kefirko.com/

This is sort of a makeshift solution, but it worked for us so we've kept at it for more than a decade.  We've always just used a glass, half-gallon milk bottle with a plastic snap-on cap.  When setting out to ferment, we'll put a couple paper towels folded over the cap and a heavy ceramic mug over top of the lid.  A sort of makeshift gasket.  When the gasses build up and pop the top, it just sits on there loosely under the paper towel gasket and mug.  This insures it remains covered from stray fruit flies of whatever.  

I think I’ll just stick to mason jars maybe put one of those silicon ferment lids on it. Those kefirco jars look nice.I’m not sure they would be much more convenient. The kefir cheese maker jar does look nice for making some soft cheese. I think I would prefer it over the wooden spoon towels method being as I only have a small cooler, so waiting for a bowel of cheese to finish dripping would take to much space.