I guess the less said about Matchless, the better. There was an interesting review on Movie Morlocks, examining it as an Our Man Flint-like Bond parody. Leading man Patrick O'Neil's resemblance to James Coburn makes this pretty plain.
Unfortunately, it is almost completely lacking in sexiness, laughs, suspense, action, or much of anything, except maybe Henry Silva as a sleazy spy and Donald Pleasance as (surprise!) the super-villain.
About all I can say is that it was better than Maroc 7.