Need a cordless impact wrench... Suggestions, please

Looking to buy a high torque 1/2" drive cordless impact wrench that will last. Not interested in cheapies.. Anything made (not just 'assembled') in the US would be preferred, but that would probably eliminate 95% of them...so I'm open to all options.
I have read reviews online using google, but my suspicion is that they are more advertisements than reviews.
Thanks for any advice or leads.