Here is a quick list of ten great things about the Vatican II Hymnal. In no particular order:
Contains the Order of Mass for both the EF and OF.
Contains all the readings for ALL THREE YEARS in the OF. No need for Missalettes.
Is over 700 pages long but is still the size of a normal book.
Includes numerous settings of Alleluias and Gospel Acclamations.
Includes the text of the sequences in Latin AND English.
Includes solid, singable hymns.
For each hymn the editor has included a suggested occasion for deployment.
Includes Offertory verses! Yes, they exist!
Includes the ICEL setting of the new translation of the Mass; and further settings by Rice, Weber,and more.
Includes great graphics that you could copy (I think photocopying one page for personal use is allowed) and give to your children with a pack of colored pencils (after Mass).