It's different, but that is it's only really good trait

Rating: 6/10 (8 March 2017)

Yes, it's very different from other superhero movies. Not just that it takes inspiration from classic westerns, but also showing superheros when they are out of control, in fear, vulnerable, just trying to get by, rather than "solving the world's problems".
But, otherwise, it doesn't have much going for it. Hugh Jackman tries, but his "Old Man Logan" is strange, somehow you don't feel his struggles. You see them, but you don't feel them. Patrick Stewart does a fine job of depicting an old and sick Professor X, but his story is rather undeveloped, so, again, you don't feel it. OTOH, the X-23 is going "full feminist rage", and at 11 is much better than Wolverine ever was - you obviously can only feel silly about that.
In trying to escape explaining too much, they went overboard. They explain way too little. What's wrong with Professor X and Wolverine? Is it the same as the other mutants or not? What happened to other mutants? I mean, there's this virus and that's it? Come on, there were some geniuses there, The Beast, Emma Frost, Professor X, Jean Grey - surely they figured out something was wrong and tried to fight it. OK, they lost, but we feel way too disconnected with them to make us feel for the ones left behind.
Looking at this movie at its own, it has the problem of many modern movies of loosing its "steam" near the end. Start is OK, hey, there's even a few jokes after the first clash. But, afterwards, while trying, it fails to provide real meaning to all of this. Things happen, so it's not boring, but, it doesn't feel real or meaningful - and the "party line" is that this should "feel real, unlike other superhero movies". One of the problems is there are no more funny moments, which is not real in general, and especially for Professor X and Wolverine, who both had their distinctive senses of humor.
So, it's an OK watch because it's a fresh, different take on a somewhat washed-up genre, but don't expect too much.