The cooling results are a bit on the unnoticeable side, but to be honest it didn't mesh well with the Lenovo. My Lenovo pulls air from the bottom of the laptop and exhausts out the side. The Designer pulls from the same area and tries to exhaust it out the back. Essentially for my testing, both fans are pulling against each other. To be completely honest, I am a bit surprised it was able to lower the temperatures two degrees Celsius as the fans were battling the whole time.
Testing aside, there is the day to day use of the Designer to take into consideration. In a couple of weeks of use, I found the Designer did put my hands in a better position and allows for easier hours than I spent with my Lenovo on the desktop. I mentioned earlier that posture may come into play as well. With me personally, I did notice it made me sit a little different in my chair. I also noticed less stress at the end of the night between my shoulders from being hunched over my desk. During portability testing, I ran around carrying both pieces together and used it a bit here and there on my lap. If you get a bit warm outside and have shorter shorts on, I did notice the Designer would slip a bit. With longer shorts or jeans, I found the little rubber feet will help keep the Designer in place with the friction against the material. The biggest plus to me was that it allowed me to get the roasting mechanical hard drive off my left leg. That alone is worth the asking price.
Speaking of the price, the $30 most retailers ask is definitely worth it. Let's recap. It kept my lap cool under operation in a mobile setting, and does make the notebook feel more secure. The fan, while low in specifications, was still able to show a drop in temperatures on even my furnace of a CPU. Like I said earlier, the Designer is on just about every shelf. If you are looking for cooler temperatures, more comfortable use, and a solid portable platform, Antec's Designer will do all of that and cost you a mere $24.99 at Newegg. The reality of it is that for the cost of a good dinner, you can go out and grab some longtime comfort while using your notebook. For those who don't want to spend a lot for added comfort, the Antec Designer notebook cooler is a great contender for your hard earned dollar.