Feeder fans (myself included) have been on a roller coaster over the years as Feeder has evolved / diversified / branched out / changed direction. The differences between their albums tends to be huge.
Some things that stand out to me are influences from their previous albums, I especially get hints of swim/polythene in this (the track sunrise is probably the clearest cut example). It's not like they've made tracks that would fit onto those albums, but some of the vocals are similar (not the lyrics, but the way in which Grant uses his voice). It certainly put a smile on my face and brought back some memories of the albums of the early years of Feeder.
Generation Freakshow is a pretty good album and I've rated it as such. It's probably more in the pop-rock type of genre than classic alternate-rock Feeder; it has some catchy tunes and decent vocals as you expect. The album, like many of their others reflects the current state the band are in; they're maturing/matured and there isn't that youthful/punk kind of energy they used to have, or it doesn't seem as emotionally driven as the likes of Comfort in Sound, it seems to be more 'uplifting' and easier listening.
Overall, it's a good album... if I was to rate it against other Feeder albums it might not score so well against the likes of the Swim-Comfort in Sound era, but for the modern stuff I think it's certainly up there.