Maxis is targeting some total 600,000 3G subscribers by year end. I personally tried Maxis 3G, now I am using Celcom 3G. I needed a good quality of 3G service, and not the contents where the service becomes more worst(streaming and 3G speed) as more customers use it without the Telco upgrading their network.
Celcom meets my requirement, even though there are more to be done.