I have an ijust2 at the moment. I love it! I'm yet to find a juice that it can't handle and the battery life's pretty good, too. It's also compatible with other brands of pre-built atomisers. Straight out of the box and you're good to go. It's non-adjustable so it's a bit like a mechanical mod but with built-in safety features. I do have a box on order but that's because I want to experiment with variable wattage, temp control and RDAs. I shall still use the ijust2 for nights out, though, as it's convenient.