I'm going to go against the grain here. Sure, Axl Rose voice is long gone. He can still belt out some pretty impressive notes but he sure cannot do it non-stop for 3 hours like he used to. They are 60 years old (it was legal retirement age where I live not long ago). Sure, Frank Ferrer doesn't swing, or even rock, at all (that's what bothered me most during their performance on a musical level TBH, more than Axl's voice). They haven't done anything new or worthwhile for decades.
Still, I greatly enjoyed the show they gave in Paris last July. They played their ass off. They gave everything they could to the audience and the audience liked it. I liked it. My wife and daughter liked it too. It was pure rock n'roll. The whole show was really enjoyable despite all the shortcomings. OK it's not '88 anymore but I think the vast majority of their audience have accepted that fact for good and don't spend too much time bickering about it all over the intarweb.
Contrary to what several posters wrote above, they did run around the stage, Slash did jump off shit all the time (he even did a headstand just before leaving the stage after 3h30 of show, dragging around 20 lbs double-neck guitars for half of the tunes), Axl changed clothes a zillion times; the whole thing was very energetic. At least it was that way when I saw them a few months ago. I'm sure they have off noghts too, like any band, even younger band.