"I know he's got a lot of haters but he's still got one of the best voices out there. Not many singers could do this song justice but I think Axl has managed it."
Pedro Goncalves added: "I was there and Axl nail it completely. Great rock roll show and in these days (sic) is getting rare when everything becomes very predictable.
"Some fans however were still gripping onto the old days saying they are disappointed by the band's choice to replace Johnson.
"They sound good but it's really not AC/DC anymore, they should rename it he Angus Young band or something," Dave Miranda said on Facebook.
"Mmmm...just seen some video from the gig.....no no no.....I never liked his (Rose's) voice anyway but he's shouting not singing and trying to sound like an ac/dc singer when he should be aiming to sound like his (weaseling) self," Andy Furniss added.
The Lisbon show was the first on the Aussie band's European tour, which will wrap up on June 12 in Denmark.
- AAP