Yes there are some good things about Obamacare but the main negative is the central government screwing with the individuals personal plans. Expanding Medicaid, a federally subsidies state pre-existing condition insurance programs and mandated major medical plans would have addressed the majority of the nation's issue and not a single existing plan would have been negatively affected. People could have kept their plan and their doctor. Instead Obama and his cronies had to go off the wall and screw with EVERYONE'S plans. 
Bottom line Obamacare is the first step toward single payer, I know it and so do the Democrats/Socialist and that is the reason they will fight to death to keep that disaster alive.