Kansas are very much an underrated band, especially here in the UK where they never really gained much recognition at the time. In my opinion it was for two main reasons. Firstly, they were a couple of years late to the prog rock party, but I think the main reason is that prog was very much a British genre, and the scene was flooded with UK bands that always dominated the style, even in the US - bands like Genesis, ELP, Yes, Gentle Giant and so on, so the US bands, arriving later, were overshadowed by those that were already firmly established.
Kansas are great though, and Steve Walsh had an amazing voice, and I do feel that the band has suffered since his retirement in 2014, though they are still going to this day which is an achievement in itself, though without any of the original members of course.
My favourite Kansas song is Dust In The Wind, from the same album as Point Of Know Return (1977)
This is such a classic song that it's been covered by loads of other people, and my own favourite cover version is this one by the eternally gorgeous Sarah Brightman, recorded for her 1998 album "Eden". This is her performing it in Las Vegas as part of the Harem World Tour back in 2004;