The show had a troubled production, with considerable changes made between the pilot film (including the character's name) and the subsequent, single-season series. There was also a mid-season course change as the show more-or-less dropped its original premise of a super-powered teenager trying to keep his true identity secret while struggling with the trials and tribulations of high school (rather like Smallville's early years, actually) in favor of Matthew and his guardian becoming secret agents for the government.
A number of Space: 1970 vets worked on the show, including Six Million Dollar Man/The Invisible Man's Harve Bennett, and producer Bruce Lansbury, fresh off Buck Rogers In The 25th Century. Star Trek actor Walter Koenig wrote an episode, and Leonard Nimoy directed one.
I honestly don't recall much about the show. I remember watching the first episode and not getting into it, despite my love of the genre. I think part of it was that I was getting older, and could sense, even if only subconsciously, that the producers and network were battling over the show's direction, and it just wasn't coming together. I also remember thinking Barton looked too mature to be a High School kid.
But it did just well enough in the ratings to get a full season - which is more than shows like Planet Of The Apes, Logan's Run, and the aforementioned Phoenix managed. As the clip embedded above shows, it also aired on the Sci-Fi Channel back in the 90s.