Hi Roxashe, I can only comment on the 2Mbps Neotel Wimax and it is amazing. They should really make a bigger noise about this as it is the best alternative to ADSL.
I have had it for a week now (not long I know), but I went from a simple request for info to having the entire thing installed within 2 days! The installation is on R500 which they will debit with the first subscrption on top of the R750 for the uncapped line.
I do not do heavy downloads, but do stream Netflix and Xbox Videos and have not had a problem yet.... The first minute or so of streaming is at a lower res and then cicks up to full SD (at least) after that.
Not sure about gaming (haven't really tested, sorry) - my latency is normally aroun 40ms so not sure if that'll be a problem, but download and upload speeds are very consistent which helps the stability. There have been posts mentioning that the line is affected by bad weather so I'll see how it goes with the Highveld thunderstorms in Summer....
I have previously used Telkom Mobile LTE, and although the speed was high, the stability was not there and acutal usability just not a great experience (lots or rebooting....), plus it was not uncapped and I always spent the last few days of the month in bandwidth saving mode!
I really cannot fault anything from the service, the quick installation, the line quality or anything.
Only thing that should stop you from getting this in my opinion is if you do not have line of sight to a tower....