Does anybody in Boston area have sprint or t-mobile?

[Rondo2287]

My new employer offers cell phone reimbursements of $75 per month and I will be purchasing my first data phone.  Sprint and t-mobile have unlimited everything plans for $80 and $70 per month respectively.  AT&T and Verizon both seem to be significantly more expensive and not unlimited data.

I was wondering if anybody here had either t-mobile or sprint and if they could comment on the coverage?