Isn't that true for all carriers though? Verizon is generally considered to have the "best" coverage, but at my apartment and my job, the signal on my company

Isn't that true for all carriers though? Verizon is generally considered to have the "best" coverage, but at my apartment and my job, the signal on my company Verizon phone is definitively worse than my own T-Mobile handset or co-workers' AT&T devices...