Of all the siddurim I like Mishkan T'filah the best (and of the copies I love the traveler's version the best because it is small). Everything you could want is in this. It is gender inclusive. It has everything in Hebrew and transliteration, with English versions. It has massive amounts of songs and blessings of all types and includes the choreography of the service for those who need it. I cannot imagine any congregation (especially if Reform) not using some version of this book. The full version also includes the Shabbat, Festivals, and Weekdays. (You can also get versions that just include Shabbat, etc) The traveler's version as far as I can tell includes everything that the big version has and that is the one that is my absolute favourite because I can (and do!) carry it everywhere. I was so hurt when I lost my copy temporarily that I only lost it a few hours before I went out and ordered a new one! ( )