I use Public Bank and Maybank Online Banking services. So far I didn't encounter any major problem.

Just once I can't login into Pbebank.com and received the error said I was using invalid username and / or password. But after half an hour, I managed to logged in. Strange...

For Maybank, last two days I can't access to their website. I think maybe some of the banks are upgrading their systems.

But I still prefer Maybank because it is the online payment method that accepted by most of the online merchants!