just bought a DSE 401 and received it yesterday. This morning it already quit making smoke. I was really disappointed with how hard I had to draw on it to get the led to light up. So hard, in fact, that I kept sucking in liquid. So I tried putting tape over one of the two holes. Same results. So I covered about 1/2 of the remaining hole with tape. A slight improvement, but still difficult. Covering the remaining hole 3/4 with tape made it more like a real cig, and finally some vape. But this morning when I went to use it, it didn't make any smoke. I guess the atomizer only lasted a day? With shipping costs, a new atomizer is $16. I don't see how this is cheaper than real tobacco like so many other people say. So far, it seems like the DSE 401 from New Life Health, purchased through Esmokershop.com is a piece of junk. The vendor offered to exchange it for a DSE 901. Is this a good idea?