Happy to help however I can! There's a ton of knowledge out there regarding the hobby and I always wished someone would aggregate it and turn it into an easier to digest form, so I guess this is a subconscious method of doing that now.
Based on the looks of that that's a ceramic rod, which is indeed a sharpening rod (many people mix them up with the grooved metal rods, also known as hones). I'm personally of the opinion that on a beater knife they should perform fine, the biggest issue is that you need to be very careful with the angle by ensuring you have a steady hand, which is harder with a smaller item such as a rod vs a wet stone, in my opinion.
That being said, it's a skill/muscle memory and if you can get it down with the rod then who cares what the world thinks? Sharp is sharp and a knife is a tool designed to be sharp. Lots of people in the community spend as much on sharpening systems designed to hold an angle to a pretty exact quantity for the duration of the sharpening activity. For me I find wet stone sharpening therapeutic even if my knife edges will never be pretty enough for IG photo shoots. I'm using a combination stone with the same grit ratings at those, in addition to some no name 3000/8000 grit stone.
For softer german steel knives like Wusthof, which are around 58 HRC my next suggestion might be superfluous. However I would recommend picking up a strop and some compound. You can get a decent one for relatively cheap (normally 2 sided, letting you use 2 compounds for under 30 bucks), they'll last essentially forever barring the addition of more compound over time, but they can really help put that mirror polish on a knife edge. You can also use them to delay additional sharpening (this may not hold true for a professional setting due to the shear amount of use a knife will see in service) but I find for my casually used pocket knife using CTS-XHP I can strop it 3-4 strokes every week or two to bring it back to shaving.