Is it worth changing networks?

<p>Good morning.</p> <p>At the moment i am on a vodacom contract and with your great data deals i would like to change to mtn when my contract is finished,but....</p> <p>I have been making use of the 1gig night express bundle for R10.this morning from 5-6am there was no internet signal.i could not make use of the data i have bought and it all went to waste...this has happened befor aswell...</p> <p>So far mtn "pay as you go" has been great but wasting airtime and data is not great...</p>