The TB20 is a great aircraft especially for long distance flying, but I would say that, having owned one since new in 2002
If you offered me a new SR22 with a G1000, I would not swap.
The TB20 takeoff and landing perf charts can be found on
this page. The takeoff roll is about 350m; practically you need 500m tarmac or 700m short smooth dry grass. 1ft long wet grass.... about 1200m
I understand the TB cruises slightly faster than the 182 but burns more fuel too
Only if you have been smoking something marginally legit, or haven't discovered the red knob
FL100, 140kt TAS on 9.3 USG/hr. The range from top of climb is over 1300nm. Look at some trip writeups on that page; they have the details. At low levels, say 3000ft, I fly at 23" / 2400 rpm / 11.3 USG/hr which gives 138kt IAS. But you can't compare a short field workhorse like a 182 with the TB20; they serve very different mission profiles.
The TB20 is nothing like the TB9 which is more like a PA28-140 in performance - but much more civilised. They are
completely different planes.
The TB20 W&B is excellent and up at the very top of usability in that class of aircraft. Mine is 900kg empty, so has a 500kg of payload which with full fuel (remember:
1300nm range, so you can fly Bournemouth to Benbecula, with Bournemouth as your alternate, and won't run out of juice until you are most of the way down to Biarritz) gives you about 270kg passengers and junk.
Only a very careless pilot will land a TB20 gear up. I know it's been done a number of times, but I have already written on this on another thread here.
If you can afford the 2002 GT model, go for that one. Much better in many small details.