The Swan Road is even quite a bit better than the albums since BIOW. It sounded weird at the time, but now the progression from the earlier style to what they sound like currently is much clearer. The solos and more inventive structures were already starting to get integrated then. The melodies are also way more ethnic sounding, which was off-putting to me for a while, but now I can't help but like how unique it is. It remains their most difficult work.
They earned all the attention they get with their first four albums, all sounding pretty different while maintaining a uniformly high standard of quality.