Yes, disagree with the parent for this reason. I've been with T-Mobile since 1999/2000-ish when they were known as VoiceStream (they renamed it T-Mobile in July 2002). That was my personal phone. When I used company-issued phones on AT&T, Sprint and Verizon, the difference was readily apparent: T-Mobile always had better quality customer service than the other carriers, more appealing plans, easier to change plans when you wanted, &c.