That's somewhat true for walking around a park but for sitting in a car or a porch/deck this is perfect because it is the same size as a small to medium water bottle and shaped almost the same. Even for sitting on a park bench it isn't conspicuous. If you were in central park and looking at the hudson river this wouldn't attract any attention especially with the mouthpiece because it looks like your drinking something. You REALLY wouldn't attract attention with this if you were walking around a crowded city because at a quick glance it looks like a drinking bottle. I don't know about you but I like to walk around or ride a bike around the city while blazing. It's fun but the smell makes it dangerous and I don't know any other vaporizers you can use while doing these things and adjust the temperature on command and not look suspicious. So like I stated depending on the situation the N02(at least from specs) and the MFLB are the best portable stealth vaporizers out there and can be used together for certain situations. The MFLB for going into the bathroom at the movies for a quick hit or while in the movie theater and the N02 for a nice stroll in a crowded city, while riding a bike in the same setting, strolling through the mall or going shopping or sitting on your porch/deck while drinking and entertaining a nice lady friend because a lot of women will be hesitant to use the MFLB outside and no other vaporizers can give different temperatures at such a fast rate and stay within range with no funny looks because they look weird or they don't last long like the VM3. I think the thing that makes it a little suspicious is the color and being that we are in a nervous energy in the world from terrorism I think the color should be blue or some bright type color but that is easy to fix with painting or just putting stickers around it.