That LP was recorded during a US tour that followed a European tour by the original trio which included Larry Coryell. When they went to the US DiMiola replaced Coryell. I finally managed to find a DVD of a European performance and it's wonderful & I find it superior to the LP performance.
The LP is fun the first time, but doesn't hold up to repeated listens in my opinion. Hot licks -- and those are some super hot ones -- are more superficial, like really thick and really sweet icing on a cake that's pretty small and not that great.
Chet Atkins, who was known to never have a bad word to say about another guitarist, when asked about Al DiMiola reportedly said, "All dressed up with no where to go." His speed and accuracy are phenomenal, but there's an emotional center that's just missing.
Again, this is very subjective and I apologize in advance if I've angered any Al fans.