Enterprise Green Communities

Hi everyone,
The city of Portland recently expanded acceptable certifications for affordable housing projects they provide funding for to include Enterprise Green Communities Certification. Other options are LEED (flavor depends on project size) and Earth Advantage Multifamily, which is a regionally owned and operated certification. This certifcation is not something I or any of the folks we normally work with is very familiar with, so -

Questions: do any of you have experience with the Enterprise Green Communities Certification? How does it stack up to LEED for Homes Multifamily Midrise or LEED BD+C? Any tricky things that tripped you up? Is there a stable of consultants who know it back to front? 

THANKS!