Had learned from a colleague about this e-cigarette. When I got them made by processing a very good impression, which is then confirmed in handling. It is solidly built and exsellent. Through the powerful Accu something long and heavy. But is a matter of habit. Technically, it does what the advertising promises. Bring ordendlich much smoke and lasts long by. At first I had an e-version, which also looked like a cigarette. Since there is no comparison, there are worlds between. After familiarization with the new I have the same old came into the bin. Who is effectively engaged in the e-smoke very well served with the Echo. There are all spare parts without problems even at a low price. One Accu gave after the first shop on his mind. But without hesitation and very quickly get a new and does it wonderfully. Highly recommended.