It's basically a Typhoon on steroids.
So? How many Typhoons you have seen in arena lately?
My point is that plane can be very fast and roll nicely but it still won't be popular if it handles viciously like Typhoon. The few extra MPH's won't help you if you get to turnfight and you stall almost without any warning. Tempest was not as bad as the Typhoon in handling department but it is still large and heavy fighter which will not win turnfights against dedicated turnfighters.
Also I think it won't climb too good either and even early/mid war (certainly late war atleast!) 109 can climb above it and then attack Tempest from above.
Every plane has a weak spot(s), so does Tempest. Remember when folks praised Typhoon to heavens saying it will the uberplane? Why don't we see them on arena then?
Finally, it's the pilot, not the plane.
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jochenGeschwaderkommodore (on leave)
Jagdgeschwader 2 'Richthofen' (Warbirds)
JG 2 'Richthofen' (Aces High)
I want to believe! Fw 190F-8 / G-8 / A-5 to Aces High!Ladysmith wants you forthwith to come to her relief
Burn your briefs you leave for France tonight
Carefully cut the straps of the booby-traps and set the captives free
But don't shoot 'til you see her big blue eyes