Tedious and awful. Almost unwatchably boring. A bunch of old guys relishing the old days with very little to say. Visually it is 1.5 hours of still pictures of knobs, wires, and racks of electronic equipment cut with 70 year old men talking. The whole idea is how great synthesizers are and how they impacted modern music, but no modern music is played or featured, They did not or could not buy the rights to any music to make this doc prove its point. A dull, goofy, bleepy, blurpy interstitial series of synth sounds accompanies the entire thing, but when they talk about a use of the synth, they never play the actual popular music or any kind of example. This is one of the absolute worst documentaries I have ever seen, and I came into it with an appreciation and interest in the subject. This should have been shelved and never released for lack of purpose and lack of the proper resources to pull off the project. I was in shock at how incredibly dull this was.