I own both Baronius Press and Catholic Book Publishing versions.
The Baronius Press version is beautifully produced and even has chant notation if you are into it and has Latin and English side by side. It is the older version and more liturgically complex as compared to the newer Catholic Book Publishing version. It has propers for Advent and Christmas. There are various instructions for when to say Alleluia, when to recite the Te Deum and such things throughout the liturgical seasons of the year (Paschal time, Christmastide, etc.). It uses the idea of nocturnes; variation of the content depending on the day of the week similar to the rosary.
My own opinion is the different variations in how/when to recite the prayers combined with the archaic language make it very tedious. I prayed Lauds for six months straight and was the complexity simply annoyed me. I spent most of my time concentrating on the language instead of actually praying. Someone who wants Gregorian Chant, Latin or has to have the older version should really enjoy it. I didn’t and it has sat unused for a long time. Send me a PM.** I might be interested in selling it. It is blessed.**
The Catholic Book Publishing version is much simpler and in modern English. The presentation is not as nice and it has no chant or Latin. It is just a simple weekly rotation. You will pray the same thing week after week. I found that I was actually praying this instead of struggling through the language and complexity as I was with the Baronius version. If you are new to praying any type of liturgical prayer like the Little Office or the Divine Office then the Catholic Book Publishing version is a great way to get into it, a great way to develop the daily rhythm.
Unfortunately, I left my Catholic Book Publishing version in the adoration chapel but I do have the Baronius Press version with me. A few pictures are below. I have added two additional ribbons.
http://timhollingworth.webs.com/img/Little.office1.JPG
http://timhollingworth.webs.com/img/Little.office2.JPG
http://timhollingworth.webs.com/img/Little.office3.JPG
http://timhollingworth.webs.com/img/Little.office4.JPG
http://timhollingworth.webs.com/img/Little.office5.JPG
-Tim-