Metro PCS Customers are lucky that the deal failed.
MetroPCS subscribers would have gotten a hosing when Sprint announced no more flat rate plans. Subscribers would have probably suffered the same old wireless crapola. Yes Dorthy you can keep your grandfathered MetroPCS Plan but if you want to make any changes or purchase a compatible handset you will have to go to a measured rate plan. Remember we are not Burger King, you cannot have it your way and if you do not like it you can go F#*K yourself.
Some of the frequencies used by MetroPCS do not match the frequencies that Sprint uses and all subscribers would probably have to eventually purchase new handsets. Sprint management probably realized that as soon as the merger was announced the screaming by MetroPCS subscribers would begin.