IF, in fact, the actual released bikes meet the pre-release published specs, it should be "adequate ". As I have previously stated, it reaches the equivalent of the 1958 Constellation 692cc 2-valve pushrod hemi long stroke twin with leaky Amal carbs, while the new 650 is employing 4-valves per cylinder, pent roof chamber, SOHC, and short stroke, with EFI to achieve similar results.
I'm pretty okay with the looks of them, and I sort of lean toward the Interceptor, rather than the GT version. I already have a CGT which I am happy with. I like the flat seat on the new Interceptor. My opinion about the GT is that it should have a longer "loaf of bread" tank, with the single seat moved back further like the old Ducati 750 Sport.