I bought this masking fluid marker for use in my illustration work on the recommendation of another artist. While I wasn't sure what to expect after reading the reviews on here, I decided to give it a go for myself and I'm so glad that I did. I have come to appreciate how easy it is to see this masking fluid on my paper when I am ready to remove it. The blue color does not stain the paper. I also find it easy to apply after a few pumps to get the fluid flowing and I have not experienced any application or flow issues with this marker (don't shake it or you may get bubbles in the fluid though). The pen-style applicator creates even, consistent lines without breaks, so it may not be the right choice when organic looking marks are needed. You can vary line width a little by angling the tip, but if a wider variety of lines is needed, a more traditional masking fluid application method would be better suited. This masking fluid works very well and it handles heat from a hairdryer without bonding to the paper fibers. I've had no problem removing it from Fabriano Artistico 100% cotton cold press or hot press watercolor paper, even if it does take a few minutes to remove thoroughly. The masking fluid lifts completely using an inexpensive rubber pickup tool that I purchased here on ZeeBooth. The lines with this marker are fairly smooth, leaving edges that are much less rough than with other application methods! When a more smooth, consistent line is needed this is perfect! It's worth pointing out that whether (any) masking fluid lifts cleanly is determined more by the nature of the paper being used than the masking fluid. Some papers, especially those made with cellulous, may not hold up well. Even some 100% cotton papers can be prone to paper fibers lifting easily, like Stonehenge Aqua watercolor paper, making them unsuitable for use with this or other masking fluids. While I enjoy using the Stonehenge watercolor paper, I do not use it when I want to use masking techniques, as the paper is easily damaged by them. Also, some papers will handle certain brands of masking fluid well, but not others. That is something to keep in mind when buying this or any other masking fluid. Depending on the combination of paper and masking fluid used, your mileage may vary considerably. I have attached a photo of a recently completed illustration, and a video showing the masking fluid removal, for reference. I created the swirly lines of vanilla on the top and sides of the blueberry bars with this masking fluid marker and I love how they came out. As you can see from the video, the masking fluid can be cleanly removed using a rubber pickup tool, as long as a suitable watercolor paper is used. I will continue to use this masking fluid marker, as it works very well when I want even, consistent lines. In fact, I may switch brands entirely once my normal masking fluid is gone. I think I prefer the consistency of this one and I find the blue color a help, not a hindrance. ** If you found this review helpful, please mark it helpful to let me know and help other buyers. Thanks! **