I am a pretty experienced user. I've been smoking the ecig 2 years or so. My fiance's mom decided to buy her brother one. I wish she had consulted me, because the thing cost $94. She was one of those people who didn't read the fine print, she thought the kit was free. Her brother hated it, and she ended up stuck with it. She let me have it so it wouldn't go to waste. I usually vape cinnacide, and this one is regular tobacco. I started using it this morning when my ego ...... me off by leaking in my mouth. I want to try and get cinnacide in it. It looks like the rubber cap will come off. I don't want to mess it up until it seems empty, so I was wondering if anyone else has ever refilled one of these manually and how they did it. If nobody knows I'm going to post up whether I succeeded or not. I almost wanted to order their cherry carts, but they are $17 for 4. I can get carts for $1.60 and I've got plenty of juice on stock. I just like it because I'm so used to having my huge ecig. I feel like I'm smoking a feather. This thing is smaller than a 5-10. I'll tell you, this company is smart. They are preforming highway robbery on people. Their batteries are not compatible with any other brands, not anything. You can only buy prefilled carts right from them. And if you don't cancel your plan, they keep sending you this high priced .... every month. Whatever you do, don't buy one of these.