Make sure you have large enough hands. Even with the changable backstraps, the double-stack magazine makes for a very large grip.
It's also a pain to conceal, both due to its size, and the angle and shape of the grip.
The trigger, you get used to after the first thousand rounds or so. It's got a nice reset.
Really, rent one first. Rent a few guns you're thinking about. Rent them and then pay for the range ammo and range lane and fire them.