A good synth doesn't need a song to support it. You can just sit on a keyboard pressing one note over and over again without feeling dirty if you just like the tone. That said, the Roland looks like fun. I had to force myself to say that because I know it's a good synth. But for some Reason, years of looking at propellerhead synth stacks has this "I don't see anything special" side effect. Like calm down Quarl. It's a Roland, it's not like you know how to make a better analog bitch. Concede defeat.
Mem bank, arps, LFOs, effect knobs, sequencer... but I can't tell, is that a mod wheel or pitch shift? I would need at least four mod wheels and twenty pad controllers to justify making a purchase. I think I have to take a point off the score because I'm basically reviewing your synth and I found one little nuance to be upset about. Otherwise I'd have given you a 5/5.