We had bought an iphone 6 as well and the battery is not holding a charge as well. I have spent 2.5 hrs on the phone going from customer service, tech support to bright star and then back again through the loop. the refurbished phones only come with a 7 day warranty....from the time of purchase not the time of delivery. So that means i lost 4 days of my warranty during transit. Boost Mobile will not replace my phone because it's out ouf warrant even though I tried to resolve this on the 6th day after delivery. Oh and if you did not activate your phone, you won't get help either. So not only will they sold us a bad phone, but forced us to start service on the phone so we can get support.
I would warn anybody to think twice about buying an iphone from Boost. I thought we were making a purchase from a reputable company but they are only intrested in selling you equipment and service, not supporting their product.