After I started the Viper Set to the steaming and have tested at a working colleague a "professional unit", I decided to purchase this premium sets. What can I say ... Unbelievable !!! Very good steam development and very good flash. The taste of liquids you can taste very good out of this device. My preferred settings are ... until now ... 3.8V and the minimum airflow rate. As the previous speaker has mentioned, the glass tank should be screwed only slightly warm, otherwise there is the pliers used. A tiny drawback is the rather poorly-read display volts, the climbing-wall quite easily adjusted by itself. But I would highly recommend this set definitely!
