I actually really like its turn-in and handling beyond the engine... Much better sorted than the e46 zhp or the e90 zsp, on par with the porsches. I would think it's far more "tossable" than a zhp, but ymmv.
BTW, I hate to say it but "I told ya so" on the 535xi.. Many things wrong with that config compared to the M, the 5, the 35 and the xi.