The key to Shakespear is that his work was meant to be watched, not read. So reading it is okay, but you seriously need to go see the play. If you are in PHX, go see the South West Shakespear Company.
Easily my favorite of all of Shakespeare's works. The characters are well thought out and entertaining, with the two different couples playing off of each other nicely, and the plot is very funny. I would definitely recommend this one to anyone who hasn't read it.