there is 1 post stating that Maxis download in terms of torrent site is more superior compare to Unifi.

also, to answer your question 1 and 2:

1) yes it support.
2) The speed depends on your location. But mostly, it is up to speed. there are some cases too whereby the speed is not up to standard.

Hope this helps..

Maxis is unlimited download and upload. it is the same with unifi.

And in terms of coverage, if unifi and maxis share the same coverage.

If one's area is not covered by unifi, then it is not cover by Maxis too.

In terms of customer service, i think that is individual preference. lol..