Ok, maybe it isn't a Ferrari, maybe you'd say the Provari and such are Ferraris. It's still one of the best devices around, manufactured by Smoore. Less known in Europe for some reason, it does give loads of vapour coupled with great taste. Of course, the taste depends on how you vape - using the drip tip, the cartridges or the cartomizers sure changes the experience, which is true for any device. Let's say it combines the two Rivas in a compromise solution that's much better than any of them. My batteries last me for two days, sometimes less, sometimes say, a day and a half, depending on how much I vape or how much I drip tip. The cartomizers can take more than 30 drops and last a whole lot (I usually throw them out with them still working quite properly, only not asd satisfying as at the start, meaning it's not unusual for a cartomizer to last up to 20 refills). You can get loads of vapour from your cartomizers too, if it is vapour you're looking for, there's no need to drip at all. The atomizers last for months if treated properly. Then, there's the LR atomizers too - better performance/a little less flavour, I'd say. And there are very simple adaptors that you can use if you prefer 510 or 901 atomizrs or if you enjoy tanks, for example. It's larger than the Rivas, but the battery last very long and you needn't worry about recharging it all the time. It's also more expensive, but well worth it. To sum it up, it's nice looking, with really great autonomy, nice flavour and indeed much vapour, adaptable and it's something you can carry, not some weird mod (nothing against some mods). There's also the X Power 900 C, where C stands for caromizers, but quite frankly they're the same, so don't bother - what you may want is the plain and simple 900. By the way, I'm not a shareholder! 
