In short: Based strictly on the audio and video quality, this would get 1 star, 2 stars at best, however given that this material has been in dire need of an official release since its only release on VHS (in the U.S. as "Best of Kansas Live" in the mid-1980s), I'm inclined to give it the benefit of the doubt. It truly is essential for any Kansas fan.
I have several bootlegs of this concert (Omaha 1982) as well as the original commercial VHS release, and the audio on this release is by far the cleanest of all that I have heard. Unfortunately, no work at all has been done to the video; it's very dark and coarse; par for the times I guess. Furthermore, the "Show Time" circular logo is everpresent in the upper right corner throughout, very annoying, and the song titles that appear at the beginning of each song look like they were done by a 1970s Pong game. Talk about being low budget.
Also, whomever did the case artwork gets the EPICFAIL(tm) award for the year: "Steve Walsh at it's Best". Oh really? Not appearing in this film: Steve Walsh.
All my petty niggling aside, this performance is absolutely superb. I've always preferred John Elefante at the helm of Kansas over Steve Walsh, and this performance showcases why. His voice is epic. The quintessential AOR voice.
As an aside, if you're a fan of John Elefante, you MUST pick up the CD Mastedon - 3 from 2009. His voice has held up amazingly over the years, far better than Walsh's voice, and the compositions are phenomenal!
At any rate, outside of other source material existing of this concert, this is most likely to be the best you'll ever see and hear of John Elefante as the front man of Kansas, given that the band now pretty much ignores the years he fronted the band, and for that reason alone it is a must buy.