First impressions the device is presented in a well packaged clear acrylic box and looks very smart. The device itself is very light but feels strong. Coated in a grippy rubber type texture this also feels good in the hand. The unusual oval design also stops it from rolling off the surface where you lay it. It also comes fully charged out of the box. It has two buttons one for a lower power hit and the other for a full power one. A small led is in-between the buttons and lights up when the buttons are pressed. No major light show going on here when you take a draw, all very nice and discreet. A firm pull of the mouthpiece section reveals the connection thread to screw in the cap(sule). It's a well engineered thread and the cap stops dead at its fully wound point. The mouthpiece is then snapped into place. Three taps on either button turns it on and vice versa to turn it off. This is the first e-cig that didn't make me choke and cough on the first using it. It comes with two caps of tobacco flavour and is a pleasant mild taste, very smooth vapour. In fact all the flavours I got (cherry, wild berry and apple) were smooth and tasty. One point on the wild berry flavour was a slight plastic taint that may fade but it was noticeable but all the other flavours did not have this. While all the flavours I have are all pleasant and smooth I do feel the flavours are quite mild and not strong, bitter or leave any kind of after taste. This may be what the designers have deliberately wanted and seeing as it's consistent over all the caps I'm happy with that. Many reviews I have seen say they can't tell the difference between a high power hit and a low power one but I can definitely tell the difference, stronger hit, flavour and thicker vapour on high is noticeable but admittedly not a huge difference. On changing the different flavoured caps there is absolutely no overlap of flavours which is good. Small rubber caps can be fitted to the end of the caps to stop any contamination of the thread and also to prevent any leaks although I did not see any leak at all and have frequently changed caps. I would recommend this e-cig for as your first device or wanting to try a value for money e-cig. Depending on how much you use it may up the running cost over a tank style e-cig but the advantages of a no leak system, no overlapping flavours, cool design and very smooth vapours make this a very desirable device. 5 out of 5 stars in relation to how much it costs, build quality and vaping performance.