Pretty much ever since I've been an artist, I've used budget-friendly brands like Crayola and Sharpie to color and ink. I had heard and seen good things about the Ohuhu alcohol markers, so I decided to invest in the 200 pack (I like having as much color variety as possible). I LOVE them. They are HIGHLY pigmented, very easy to work with, and require very little pen pressure to use. There is no detectably strong alcohol scent, and though they do bleed, the protective plastic that comes with them is extremely helpful in preventing any bleed-through in the papers. I also purchased an Ohuhu paper pad as well and noticed an exceptional difference in the colors' quality and smoothness.
Finally, I tested the markers by using a Sharpie fine-point pen to ink my drawings. In an older sketchbook of mine, the colors mixed with the Sharpie, which resulted in pretty ugly feathering, but they meshed perfectly in the Ohuhu sketchbook. I recommend purchasing these markers and the matching sketchbook together for optimal color and ink payoff.
One last thing: take the time to create your own page of swatches with each marker, and label them accordingly. Like everyone else in thw reviews said, the caps don't QUITE match the colors exactly, so I find that making and labelling swatches for each marker, albeit time-consuming, is totally worth it.
Overall, this was one of the best purchases I have ever made. It is a pricy investment, but honestly worth every penny, especially since each marker runs only 50 cents a piece. Thus far, I have nothing noteworthy to complain about--other than like many others, I wish there was a larger array of pastel/lighter colors in the set. And mayyyybe a bit more dimension for the purples (I'm biased on this part, as purple is my favorite color). The only other beef I have is the colorless blender pen--it doesn't really blend the colors so much as it just creates an odd-looking alcoholly spotting on the paper, which is a little distracting. If I desperately want to up my blending game, I'll just use my drawing tablet and Clip Studio Paint. But other than that, these markers are a dream come true for me. Highly, HIGHLY recommend!