The difference alexander is Glyn flew machines and Kylin are made very well with great prices! I have a glyn f and have friends that have kylins(will buy one soon) and they are good builds.
But the evolution is not-it has bad machining, poor quailty motor,major design flaws etc. This machine should honestly sell for about 50 bucks as a starter rotary. Deakon just cause very good tattooers use them does not mean they are well made for the price. Of course Deakon you will always defend their sub standard quality because you sell them and want to make a profit off those sells.