I took a chance, as few have reviewed or own this controller. I wanted a Hammond Clone I could stand and play, as my back gets sore at my RT-3 after an hour. I put the T4 on top of my old Fatar Sl880, updated the firmware and downloaded the latest Logic drivers from Nektar, and fired it up. To my shock, the 9 faders matched Logic's vintage B3 drawbars BY DEFAULT, and the knobs were also set perfectly. Unlike the very heavy keys on the Fatar below, the Nektar is very close to real Hammond keys. I'm in heaven!!! Thank You, Nektar!!!I can't wait to use the T4 with the rest of Logic, and perhaps an analog synth, like the neutron, as well. The T4 is lighter than I expected, and uses only a single USB to my Macbook Pro.If I wanted to pick nits: the keys could have felt on top stop, or something like it. On release, if you let go, you will hear them as the spring pushes them up and they hit the stop, with the keyboard off. This is pretty common, even my Fatar, 100% weighted, with felt, can be heard in the same way, though more muffled.Once I started playing I did not notice the "stop" noise on release at all. So I won't even take a half star off this great value, so cutting edge, and so well thought out.I like it so much I write this reivew, my first after 15 years buying from Amazon.