What is your planned uses Arly? I don't consider 740 inch pounds to be exceptional. You need to fire up your laptop and go to You Tube and 'Torque Test Channel' and watch their very careful tests of various cordless impact guns and then decide. I let their first article tests decide for me what I purchase.
I'm an air person for the most part and I purchased the Astro Pneumatics Thor 1/2" impact on their recommendation and it's a frigging beast. Waited 2 months for it. Was worth the wait too. On 135 pounds of air with 5/8 air line and high flow couplers, it makes in the excess of 1300 foot pounds break away and just shy of 1000 foot pounds tightening. Nice (quiet) wrench too. Gave my noisy IR Thundergun away.
I also have the Bauer 20 volt 1/2" impact and it's no nut buster by a long shot but it does a satisfactory job. I rarely use an impact to tighten a fastener, only to break them. Far as the Thor is concerned, if it won't break a fastener loose, it will twist the nut off so long as the socket don't crack.
So far, I've split Snap On, MAC and SK Wayne impact sockets no problem. Only ones that have not failed are the HF black oxide impact sockets of all things. Not broken one yet and I whale on them with no mercy.