Pretty much the same. My atomizer from puresmoker is a TINY bit harder to draw on but gets tons of vapor and works well. With njoy you're getting free replacements for a year, so that's basically what the extra money is for.
If you go with the njoy package, it is still much smarter to buy a spare or 2 from puresmoker or something for when you're waiting for your replacements from njoy, but esentially both ways of buying are good. One way you get the $50 pen package, with 4 or so spares, and that's going to be $100 or close. Or, you get the $100 from njoy, and over the year you will receive probably more than 4 atomizers as replacement as they go bad (I've already got 3 from them and its only been a few months), and also you can get replacement
batteries, etc. So with njoy in the end I think you are getting MORE for the money over the year, but if you dont have spares waiting for your replacements will be tricky
Correct me if I'm wrong Darcy. I don't think it's stupid though

I think both ways are ok.