I like that quickbid allows all my projects at once including subcontractors & suppliers so they can be updated easily without me having go through each one individually via our ERP system! It's nice being able use it outside work hours as well unlike some other apps out there (like ios) where if its not 100% open up again could lose connection - causing issues later when updating invoices etc It was simple enough that I could use it without training! Also my users loved how intuitive everything seemed right outofthebox-it felt like they were using something similar but better designed elsewhere.- No major problems as far ususing this product goes:- Easy setup & quick learning curve (after 30mins)- Very smooth transition from traditional estimating tools - no changeover issues at all.