Complex sentence: The collection is arguably the best representation of Cameo released to date, containing 23 of their 26 Top-40 R&B hits, though the top 5 single "You Make Me Work" is not present.
Split into simpler sentences: The collection is arguably the best representation of Cameo released to date, containing 23 of their 26 Top-40 R&B hits. Strangely though, the top 5 "You Make Me Work" is not present.