Having previously had a KTM 950 Supermoto - I too looked at the GT after a Ducati Multi and before the XR conversion
I loved the 950SM - it was BONKERS - I`m not a hooligan but that bike was...and it was catching

unfortunately - it got to over ten years old - and although a basically simple bike it was starting to have issues (mostly electrical) and I did not have time to give it the care it needed - so found it a willing new home in Cornwall
Dealer was not interested in giving me a test ride on the new GT
- felt lucky to be able to even sit on one.
also would not consider my Ducati Multi 2014 as trade in
no ex demo - and no discounts - sell your bike and come back with cash..
Also not all got the best reputation in dealers for aftercare / service - I never used the dealers as I had a good independent locally who looked after a few KTM race bikes with the same engine
- although the 950SM was really pretty good other than
the carbs getting gunked
rear brake completely useless as the reservoir was next to exhaust and just cooked
and the dash electrics getting a bit flaky with age
- not sure I would trust another one with all the electrics - but would have the 950 again like a shot ....
so never actually tried a KTM GT - shame as I love the TWINS......
Rob