The whole is greater than the sum of its parts for me.
I mean that it's a combination of looks and feel with functionality. To some extent cost is a factor for me too.
If the marks are consistent in appearance and are not sharp to the touch and do not interfere with the intended purpose of the product and the price is commensurate with the finish relative to other products offered by different makers, then it's fine.
If the marks are irregular looking it can be annoying. Especially if the product is relatively expensive.
If the marks are sharp feeling or interfere with the smooth function of the product that is unacceptable.
If the marks are sloppy and elude to lack of attention to detail or a lapse in quality control, then it's highly irritating.
If the marks are unexpected, or not usual for the product when observed in other parts made in a similar fashion and sold for a similar price by other manufacturers, then it's disappointing.
Sense of value and expectations of quality are perceptions that differ from person to person and even over time to the same person. Expectations can be tempered by good communication. Value is harder to quantify. Is it a lack of time or attention to finishing or is it an intentional or irrelevant 'feature'?
Specifically with razors, DE razors, I prefer the brushed finish or blasted finish. High polished pieces drive me crazy because I will notice every imperfection over time. Swirl, scratch, water spot, tea stains, rust spots, soap scum, tool marks, etc, etc, etc.
I don't like the finish I have seen on Charcoal Goods razors either. I can appreciate it, but it's not my style.
I like the finish on the brushed Wolfman and the handle of the latest Ikon SE. They're different from each other but neither are entirely raw cut with tooling marks. They are not slippery in use. They are not prone to show small blemishes.
The inside of the Timeless top cap is not something that bothers me. It's a unique texture and the reasons why it exists and why it's left in place were clearly communicated by the manufacturer. No worries.
The Flacon razor handle I just got off eBay recently is a huge example of what I'm saying about individual expectations and the fluid nature of how much the final finish can or won't bother me personally.
I got that handle for $13.49 delivered. I full well expected it to be less than special. It's pretty much what I expected too. Rough with sharp edges and clearly visible tool marks and numerous imperfections. It does not bother me very much at all. I am considering filing off the minor burrs and rounding the edges a bit when I have time.
Had that handle cost any multiple of what it did I know my expectations, relative irritation at the imperfections, and willingness to accept the flaws would all fluctuate accordingly. At twice the price I might be slightly disappointed. At quadruple the price I might return it or at minimum complain to the seller. Anything more than that and I'd be shipping it back and mentioning it on the forums as something that might be avoided without due understanding of the finish.
At a certain price point I feel like there is a reasonable expectation that the finished product look and feel - finished.
Unless clearly communicated and clearly defined as an expectation either in pictures or in writing, I think anything drastically different from the product shown or described at the time of purchase would be unacceptable.
So I suppose that ultimately I don't personally mind tooling marks if I expect them, they don't effect the function, or are a trade off of the value proposition in buying low priced items.
If I spent a lot of money thinking that I was getting a top notch product and I later received something that looked like shortcuts had been taken or carelessness had occurred, then I'd probably just return the product and move on.
Communication and clear descriptions can go far in tempering expectations. Pictures speak louder than words. Words matter a lot though.
