I wouldn't go for yes no matter how good is the plan, they have bad customer service. I got wrongly billed extra (small amount but i can't let them get away) last month and I called for reversal of charges. The conversation is something like this

Me: Can you reverse the charges?
Yes CS: Sorry we cannot reverse charges like that.
Me: Then can you escalate me to your accounting department?
Yes CS: we won't escalate every case
Me: But you don't understand my problem, I need escalation
Yes CS: Sir I think you're the one who don't understand me.
Me: !!!!