Okay, I have received my UD for a while now and I think it's time for me to review this thing. I will be rating everything out of 10.
Price - 9
The price of the UD is great for the quality you are getting. You also get so many little things that just makes the whole unit great. This unit also comes with Great Customer Service.
Taste - 8
The taste of the UD alone is good, but there is a slight bitter taste on your tongue after using it. The flavors of the materials you are using does come out strongly and evenly too. You will get massive clouds from the UD, no doubt. It is evenly yellowish brown ABV. If the UD is a little too hot for your lungs you could try moving the screen back a little. I personally enjoy my UD when used with a water filtration tool (WaterPipe). When used with a water pipe it removes the bitter taste and allows you to fully enjoy the taste of the material you are using. I would give it a 9/10 with a water-tool. I also must note that the vaporizer is extremely efficient! I find myself using less herb material to get to where I want to be.
Convenience - 10
The most convenient vaporizer I have ever used, this thing literally have 0 clean up time and 0 set up time. It's quick and easy to use and the learning curve is extremely low. I just plug my UD in, grind up my materials, grab some drinks, and food then I return for some nice thick vapor. The stem are great with convenience. I pack 2-4 stem per night and when I feel like I need some more vapor, I just go back, pull out a stem, and plug it into my UD.
Stealth - 10
The stealth of this unit is unbelievable. My UD is extremely small, but fits in your hands perfectly. There is a woodshop smell to the unit however, but that smell is a lot less noticeable with extended usage. The AC outlet plug is a bit bulky though. The mouthpieces are great for stealth. You can prepack them and also store them into the tube that they came with for a "NoSmell" solution.
As of now, the UD is my daily driver. If your looking for something a bit more stealth and reliable, but you don't want your flavor going down because of it; I would go with the UD vaporizer. It is extremely efficient and heat your herbs evenly. It is the most convenient vaporizer I have ever used. If you would like a cleaner taste, use the UD with a water tool and you will be in heaven. The unit is sturdy and looks like it can survive. I like to party, and my friends always ask me "Is it working?" when they are using my vape, but with the UD, they know it's working due to the massive clouds it produces. I love this vape!