You might want to pin this though as theres a lot of misconception.

Maxis uses TM infra on the last mile, which is from the cabinet to your house/apartment. After that Maxis have their own infra but some areas they still use TM infra. This is not the reason that maxis service sucks if it does because maxis provide their own PPPOE servers and routing.

Unlike TM, Maxis isnt a T1 ISP. Despite the fact that maxis is an ISP in a couple other countries doesnt make them good either. Maxis lacks the international bandwidth that TM has because TM has become a T1 ISP, connecting malaysia to other countries so maxis is only fast within south east asia. This isnt limited to maxis as all other Tier 3 ISPs in malaysia suffer from the same fate so we are literally at the whims of singapore for our international bandwidth (except for TM). This also applies to TIME (i've used them and even a 512Kb/s video from another country buffers).

Maxis support is also known to be small and the router they give is known to be crap.

Regardless, if you dont care about the international bandwidth and your primary content comes from south east asia and you use your own good router, you will find maxis to be cheaper and better than TM when TIME isnt available in your area. Many of the complaints i see for Maxis happen because of the crappy router they give out.