I'd have one of these in a heartbeat.
Just for touring. I don't like the full dress baggers. I tour fairly light and this would be more than enough for my needs. I'd stage 3 it and that would do. I miss the big twin feel. I love the Rocket's triple character but the whump, whump, whump of a big Harley is equally satisfying in it's different way.
I cannot abide the styling of the R18. The cylinders are ridiculously large and far less attractive than the BMW's earlier versions.
In terms of a performance comparison with the R3, there is no contest.