I am a beginner in using alcohol markers so I’m not 100% sure what people look for before buying. However, I have bought Copic markers in the past and for the price of what you’re getting these are definitely a great alternative. It’s normal the markers bleed through but I still really enjoy using these in my “adult” coloring books. I did receive a dried out marker but I contacted the company right away with a photo of the marker through email and they were awesome! They took care of the issue and were able to send me a free replacement within a few days. Therefore, I do recommend testing them out and labeling each one to make sure everything is good. The only little thing I would say is personally there are a little more shades of gray than I would have liked. I don’t typically use gray markers when coloring, but again that’s just my personal preference. However, I don’t mind because honestly you’re still getting such a variety of colors for a great price!