Does it work with characters that couldn't be built in the Classic CB, such as Essentials characters?
The summary will be incomplete. See below for an example (Thief in Dark Sun):
[sblock]====== Created Using Wizards of the Coast D&D Character Builder ======
Valna, level 1
Elf, Thief
Background: Elf - Urban Elf (+2 to Thievery)
FINAL ABILITY SCORES
Str 10, Con 12, Dex 17, Int 10, Wis 14, Cha 16.
STARTING ABILITY SCORES
Str 10, Con 12, Dex 15, Int 10, Wis 12, Cha 16.
AC: 15 Fort: 11 Reflex: 11 Will: 13
HP: 12 Surges: 1 Surge Value: 3
TRAINED SKILLS
Streetwise +8
UNTRAINED SKILLS
Acrobatics +3, Arcana, Bluff +3, Diplomacy +3, Dungeoneering +2, Endurance +1, Heal +2, History, Insight +2, Intimidate +3, Nature +4, Perception +4, Religion, Stealth +3, Thievery +5, Athletics
FEATS
Level 1: Bardic Dilettante
POWERS
ITEMS
Short sword, Dagger (3), Leather Armor, Adventurer's Kit, Flute, Climber's Kit, Filter mask, Fire Kit, Thieves' Tools, Survival Day, Waterskin, Poisoner's Kit
====== Copy to Clipboard and Press the Import Button on the Summary Tab ======[/sblock]
Note that the trained skills aren't correct; she should have Stealth +8, Thievery +10, Acrobatics +8, Athletics +5, Bluff +8, Insight +7, Streetwise +8. Probably an import/export bug.