Thanks for the response Ace2cool.
Yeah, I would almost certainly ditch the runflats and pickup a set of Michelins, etc regardless, but I'm glad to hear there's nothing behind those reviews which are panning the Q's handling. Always pays to ask a bunch of owners.....
Truth be told, I do love German sports sedans, but nothing currently being built really (for me) strikes the balance between "appeal" and "value", with many of those marques shifting away from building real "driver's cars" and focusing more on comfort, technology and gizmos. BMWs and Audis in particular are becoming too expensive to own, and too complicated to maintain one's self as could be done with the older models post warranty. I love my 2001 7-Series, but I doubt I'll ever own another BMW for those reasons.
Thank goodness Infiniti builds some pretty spectacular cars which--unlike the Germans--have a pretty solid record of reliability. My 2008 EX35 has been terrific. I only wonder why Infiniti doesn't sell more cars....
Appreciate it!

Tim