I have had a couple of different midi controllers over the last few years. A 49 key made by another company that is quite popular, that actually broke on me (USB input in the back just stopped working) and so i purchased the 61 key PRO version of that keyboard. I didn't care for it at all. i didn't use the advanced MIDI mapping features it toted it was exactly the same as the previous model i bought, and i had no confidence of it lasting. Then i checked out the Akai and after owning now for a couple of weeks i LOVE IT! people tend to complain in review about the stiff keys, but as someone who shoe grew up playing a Baldwin baby grand it felt more natural to me, as did the way all of the buttons and knobs are layed out. I really like the arpeggiator built as well as the mic pads and pad bank it is so much better then those 4 pad setups. the mod/pitch bend wheels are so hardy and solid, so much beefier then others I've tried. I also enjoyed the feel of the keyboard itself the weight and construction. 5/5 for me I'm very satisfied.