This thread actually inspired me to pick one up. I ordered an inexpensive one off eBay. From what I understand, you need to use some kind of cleaning solution rather than just water for the cleaner to work well. So, I also ordered a quart of Gemoro ultrasonic cleaning solution concentrate. My wife has a pretty big jewelry collection so I figured I could save her trips to the jewelers for cleanings and use the machine to clean e-cig parts as well. I don't think I want to use one to clean a coil. Concerned the cleaning solution would leave a residue in the wick even after washing.