Depends.

As for me, I don't have any coverage issue since all the location I go is covered.
speed is good. calls free some more.

Only bad thing is out klang valley.
Call signal is ok. even in my isolate hometown can receive and make a call.Data mostly E and G, only whatsapp is available. FB IG twitter and browsing is a no. but I do not use data when I am balik kg. Busy with quality time with families.

Satisfied.