I feel exactly the same way about my Wersi, I can add anything I want, the PC hardware is upgradable and I can add any third party sounds etc., I want, as well as being easy to use, which is why for me personally, I prefer it above the others out there.
Others will have different requirements, and so will choose an instrument that suits them. (There is no right or wrong about personal choice, even though some try to prove to themselves and others that there is)
Enjoy whatever you play

Bill