Its a good clone of the arp but in my opinion, sound quality is not exactly the same. Also the behaviour of the keyboard and buttons. Has some nice add on features that original didnt have - USB connection is the major one thats good to have but other than that, everything works as expected. Sound quality is good and construction is alright, i would expect less wobly controls, the buttons wobble a but . Also the rubber buttons could be stiffer, sometimes its not clear how hard you wanna press on them. All good - for a cheaper price, worthly addition to the studio