If its a slim ecig, then no.
If its an eGo PT, I def wouldn't say it's fantastic, but it will work. Personally I wouldn't use them though on an eGo. A 1.5ohm carto will put a lot of stress on the eGo mosfet and if your not careful they can fry your eGo. Also the eGo is only 3.3-3.4V and really doesn't run dual coils that great. I have an Epower which is 3.7V and I don't think the dual coils are that great on a 3.7V either. 3.7V PVs run the dual coils alittle better than the eGos, but it's still is not that great. Dual coils are okay on my Epower, but they are really nothing special.
Personally I think dual coils only really work awesome in the 4-5 volt range. So if you really want to use those cartos I'd recommend getting a 5v PT. you can get one for cheap and they will run the dual coils alot better than a 3.7V PV or a 3.4V eGo. I use the Ressurectors on my Epower and they work alot better than any dual coil. Their 1.7ohm LR and are single coil, but my Epower handles them alot better than DCs and produces just as much vapor if not more, and doesn't drain the battery like a DC.
If your PT is lower voltage, their are other cartos that will work alot better