I thought that 707 would replace the Octatrack Mk2, that I had to return back after almost two years of ownership and numerous returns (5 in total, waiting time, per return, was around 2 months..) for various issues.. :( I used to control Octatrack with novation lanch control via kenton usb to midi host, so the lay out was the same as the 707, a fader and 3 rotary dials per track to set as you like..Back to Roland now.. Build quality is very poor. from day one 3 dials were wobbling and not turning smooth. The screen.. oled with the worst viewing angles ever. Another thing I mentioned was issues with the polyphony. Stealing notes some times without notice. I could not find a way to apply cut off filter to my samples as a looper!! Arpeggios are very simple not even comparable with the Yamaha's superior system of arpeggios. I had to use my MoXF to run some interesting arpeggio phrases of 707's sound engine. There are some good sounds in the Roland's sound bank! Some of the internal sounds you can not really affect much using the cut off filter.. Some of the effects are good and they are plenty! I send it back for a refund after 5 days of usage mainly to poor quality. A warm thanks to Thomann team for their fantastic job and return service that they always leave you smiling at the end!
:)