I've been hunting for a good pod device for years. Vaporesso has quality products in that department. I've had 2 others for several months, but size-wise they weren't great, and they have rectangular mouth pieces. This is so slim, and it doesn't sound like a steam engine when I hit it. Another reason I like Vaporesso pod products is that they don't light up with silly lights - just a single battery indicator on this one. I'm currently using a 70/30 liquid 0% nic, with a few drops of 20% nic salt. The pod itself is magnetic and easy to install. I wish pod systems were this nice when I first started.