We use Plamatherm, their newer model, and I have used their old model 10 years ago and would advice to stay away unless absolutely needed. The time to thaw is usually longer than Helmer especially if more than two units thawed at once. We keep getting overtemp error and there is nothing in the manual on how to troubleshoot it. There is another waterless plasma thawer I had a pleasure to see in person and it looked promising but not sure if they are still in the business. It was Zipthaw by GenesisBPS. It depends what your need is, if only two units are needed at one time I would consider waterless thawer as a back up
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