This is a great product for the price! I have used it several times and it takes the hassle out of cooking herbs. The only thing is that if you are cooking only a small volume of herbs, then it doesn't boil down to 1 cup, more like 1 1/2 - 2 cups of liquid. Also, I noticed that the boiling function doesn't turn on if you boil a second pot of herbs right away without letting the pot cool a bit first. Other than that, this sure beats the heck out of constantly monitoring your stove while your herbs cook.
This is a very handy appliance for those like me who always burns the herbal medicine I cook or either undercook or overcook it. I can put in as many bowls of water as the doctor recommends, switch the setting to either low or high (within 30 min.), and then it beeps like an alarm clock when exactly one bowl is ready. It can also be set to stay warm for a couple of hours until you are ready to drink. The only drawback is that it only makes one bowl every time. I'd love it if I can make multiple bowls all at once.