I use it for a month now (buying the Apple Store), and I must say that I am still amazed by his capacity calculations: the number of Plugg in that one can open is simply amazing mix .... a "current of 30 audio tracks, with an average of 2.5 open Plugg, 75, and the resource prcesseur do not Exceeds 30% ... The synths legacy type ( wavastation) or sample tank with banks have always sounds consquentes do not Exceeds 50%, and yet I ask him .... No, really, it's a great tool, with two assets supplmentaires: the beauty of the machine (but it is subjective ...), and Mac OSX, stability for the moment still not in default (I do not use "crack") .... The most impressive thing to beginners, and even now is the time taken for the calculation of the export mix in cubase .... 3 minutes more are expected, no 20 seconds enough on projects "common" ... I could not afford the MODEL supprieur, but with the dj I'm in the right time for a ..... I put 2gig of ram because 512 of dpart, but are a fair bit .... my objectification may be relative, because I am Macintosh and fifteen years now, but under Windows, I use also , to obtain the same stability you really have a machine SPECIFICATIONS prpare for audio, and the price is comparable to that of any fact my machine, Mac OSX and less .... even when the power is significantly down .... For all computer music, or all the musicians of the computer, I would suggest, in the case of an investment for a new workstation info, look at this machine more prs, the price-performance ratio is very allchant ... No, no nothing, no I have no regrets ....