I shot them at ATA a while back, great bows, most reviews claim they draw way long so you may need a different draw length setting than you think, though most Mathews draw long as well but not as long as these.
Going from the bows you listed you will be shocked initially at the draw cycle, that speed bow will climb to max lbs quickly and drop off into the valley abruptly, after some time you will get used to it but a lot of people can not get past it initially.
Their bows have some great features, main issue is dealers here in the states, not sure how a warranty issue would be to get handled?
I would say go somewhere and shoot a speed bow like a Hoyt with a turbo cam, or whatever is the fastest bow you can get your hands on and se if you don't mind the harsh draw cycle.
Draw cycles don't bother me much, but it does take some shooting to get the muscle memory to adjust.