Claiming to be BEST mobile network

I life in Loerie Park, George, Western Provinve. According to all vodacom advertisments they say they are the BEST mobile network in the country. I live in a area were i dont even get better network coverage than EDGE and if i travel to a place like Uniondale I get H+ on my Samsung Grand Neo. I think its unacceptable for a mobile service provider to make such claims and dont life up to their reputation. If i use my mothers MTN simcard where i stay i get full H+ signal and it doesnt even loose the signal. I have been with vodacom since 2005 and i think that its really bad that the rival mobile service provider is doing better in this regard.