Don't know about the Greensmokes brand, but will say anything to help leave the tobacco ones behind is going to be better for you. In time, I wouldn't be surprisd to hear you've switched to one of the entry-level battery and tank systems. You'll find many more choices available as to taste/flavors, probably less costly and more convenient than searching out and buying a certain prefilled carto, and, provided you have someone in your area capable, you can have your flavors custom tailored to your taste/hit/nic level preferences.
As to switching being a big problem, all you have to do is figure out for yourself which is better for you. Since you've decided to try "the other side", I assume you've already figured it out. Now all you need do is stick with it. I smoked a pack+ for 50 + years. Got my first e-cig, put down the stinkies the same day and haven't looked back for over 8 months. If I can do it, you can too. Tell yourself you're setting a good example for everyone else. Afterall, "monkey see, monkey do" works both ways. Who knows, you just might convert some of those around you. Plus, I'm sure your CO would be happy about less cig butts laying around. Police Call was always a pain.
Oh yeah, welcome to VT. Plenty of friendly, knowledgeable folks here to offer support and advice.
Alot of us have started with those cigalike type devices, they did help me get started. Most of us figure out along the way that going with a refillable tank style device offers a huge improvement in options for flavor, throat hit, nicotine level, etc... Read around in some of the threads on the forum here, there's alot of information here for you. Good luck with your attempt to quit smoking and welcome to the forum.
