never had any better experience of 4G on any other telcos than maxis.

their 3G sucks though. When you get LTE that's the best ever, but when i go back hometown, no LTE, the 3G slow like 2G.

3G, Digi is better. LTE meh2 with the coverage so i turned that off in my phone.

Phone calls better on maxis/celcom too, especially when on the move like driving, etc. Digi tends to disconnect if it can't manage to switch the tower quickly(my noob theory cuz it happens all the time). Plus indoor calls sucks with Digi.