Well my english is bad but ill give it a try ,

my experience with sx mini devices are superb this devices are the reason  to quit smoking and made me a better vaper started to own my first device 2013  the sx mini m class and was very grateful for a high end device like this the  power for that device were superb the smoothness on each puff was better than  any regular vape mod and so started to choose high end devices my next device  was the ml class had to choose between that and the dna 200 and choosed the ml  because the temp control was something that i wanted and saw many reviews for  this devices as i tried the ml it was clear this the winner the machining of the  device was perfect every detail o the device was top for the other devices the  newer ones didnt had to see reiviews bought them right away the q class in red  was my device then for everyday that device that i won in other competition by  you i was verry happy with this device but before 20 months stopped working the  screen that was my first problem with the device but its not a big deal because  i bought the g class and iam very happy again with it ist my only one device for  now because we are in greece and the money is not much tha we earn i would love  to own an mx class for secondary device for the mtl atomizers and as i see in  the internet the device looks stunning and would be nice to have one of that  !!

thank you yihi team

best regards

Georgios Karanikas