The novelty of the new trains hasn't worn off yet. Admittedly, part of that is because there's still a very good chance that you'll end up on one of the old ones; the rollout hasn't exactly been speedy. But still, it's cheering to be stood on a platform and see people's faces literally light up when that white M bursts out of the tunnel.
There's also a new station building. Maghull North, the previous newest station, was a pretty dull affair, little more than a conservatory with a ticket office in it. On the other hand Ainsdale, which got a comprehensive rebuild five years ago, is a triumph.