Tunisia has never had the really big stars like the ones you mentioned, or Ghana, Egypt, Algeria etc. They are also never favourites for the AFCON (they won once on home soil in 2004), but usually makes it to the quarterfinals at least.
They are not a spectacular team to watch, but they are well organized in the defence and have good fighting spirit, and in generally play "smarter" than many of the more spectacular teams in Africa.