Excellent so far. When the unit arrived I unpacked it and set it up. I was super excited and gathered up some rusty old tools etc. to test the unit out on. I ran them through a 15 min cycle using blue dawn, white vinegar, and water the results were impressive. A small antique pipe cutting tool that I had put in was completely seized up and the parts were not free moving prior to the first run but even after just the first 15 min cycle I could of freely move most of the parts. I was amazed, I put this and the rest of the items through another 15 min cycle and wow the amount of dirt and dust that can off was amazing and with a wire brush and minimal elbow grease even the heavy rust started to melt away. It's not a miracle machine but it certainly does it's job. The second run I put a tie rod end off of a 55' Willy's jeep in it, same cleaning formula as the first run plus a little LA's totally awesome cleaner...we had already tried using a torch to break it loose from the bar it threads into with no luck...after a 30 minute cycle it was still not free to remove it but we flipped it over and did the other end. After that cycle finished one end came out surprisingly easy (by hand after the clamp was loosened) and the original stuck end took a bit of leverage to break loose but finally gave. I'm not sure it would have come loose without putting it through the machine considering how much time, heat and force we exhausted on it prior to the ultrasonic bath. Granted the 10L isn't huge I was still able to do one end of that bar at a time and it worked great for me. So, so far so good. Two uses, a few cycles and I'm loving it so far. I chose this model because it seemed to have better reviews than all the other brands/models with the digital control panels. I was not dissapointed. I will update my review at point in the future but if it continues to deliver the same performance, I'd consider it a solid buy for $$. If your like me and have realistic expectations I think you will be pleased. As another user stated the heating element doesn't shut itself off when the timer for the ultrasonic cycle ends - something to be cognizant of but by no means a deal breaker for me. The noise I found irritating, and I actually wore ear protection the first time I ran the machine because I stayed in the room with it...it's not terribly loud but the frequency it buzzes at is irritating and unpleasant for me. The second time I set the cycle time and left to do something else outside the garage until it was done. Hopefully it continues to do a great job for a long time.
RJ 
