I would say that CDMA technology from Garuda is still in infancy stage, give it some time to breathe in this competitive world and with the passing time lets hope it gets better.Think Positive if u r ready to wait that long.
You get less options for handset as CDMA works with only selected few.My personal experience is that in open space the reception and clarity are good but in offices signal is weak particularly in western suburbs.You have to hang the antennae out to get the phone ringing or to get your self heard by other party but people around you will definitely have no problem in eavesdropping.
I would rather recommend BPL or Orange with the new rate cuts and good cheap handsets readily available in the market.