Very good prices and variety. I only liked 2 of 8 flavors tried, but at the price paid, I can't really complain. Fast enough service. Labels will fade and ruin with handling and moisture, I covered them with some clear tape to resolve the issue.
Fast service, but a couple of things knock off some points. First, and this is not usually a problem for me, being a flavor-chaser and a lover of dessert flavors, the juice is too sweet for me. It is good occasionally, but I couldn't do them all the time (I tried 5 different flavors). Secondly, the small bottle tips are too blunt to fit into tight fill spaces. And lastly, the small bottles are just plain hard to squeeze. I had to use spring clamps to fill my tanks, my hands couldn't take it. To be fair, I have only had the sampler (which is awesome that they provide!) which is small bottles, I haven't had any larger bottles which may be different.
Quick service. Have not had any leaky bottles yet. They have the nice needle tip bottles, easy to fill a kayfun. Although not all the flavors are for me, they all are described well and for the most part taste as described. Reasonable prices and they regularly throw coupon codes out to reddit as well as included samples with all my orders. They also have a 3 mg option. Highly recommend this vendor.