I was with Maxis since 2006 and in Dec 2022, I ported to CelcomDigi for almost 15 months because Maxis didn't have 5G back then.

I ported back to Maxis in March this year and I can tell you, Maxis is so much more stable. No doubt Maxis is not perfect but overall, it is still much more stable than CelcomDigi.

I now use CelcomDigi Edisi Kuning Prepaid 25 as my secondary/backup line and Maxis is my main line.