At the moment I am with VOX telecom ADSL 10Mbps FatPipe capped (400GB). not throttled nor shaped and of course, no FUP. I started w/ a very good promotion on their FatPipe capped package, and almost 2 months later I was upgraded from 200GB to 400GB. I can cumulate my unused Fatpipe from one month to the next. I currently have 3TB available.
My download speed is usually around 7Mbps w/ latency of 17ms. My upload speed is 0.9 to 1.1Mbps. Very reliable service and connection. But that was the very competitive Vox-ADSL! I am now about to upgrade to a FTTH 100Mbps/ 100Mpbs uncapped on Vumatel network through either Cybersmart-Lightspeed of Vanilla. I would have gone w/ Vox but they do no seem to care much about returning customers like me; I wonder if they actually have a department of retention and competition and certainly does not look like they do a lot of customer churning analysis so much so that I could not get any free upgrade from them (trust me I tried and spoke to 4 people there), therefore I look and found cheaper and better elsewhere despite Vox's current advertised free setup/ activation worth R3000 (or so they claim) which is a bit of a scam since you pay more per month and not only the first year, for ever... we are talking potentially R1400/ month on their Pro bundle (R1200 on their basic) on a month to month basis (although you pay back the activation and set up fees if you leave then before the first 12 months) compared to R1100/m for ever w/ Cybersmart w/ a one off activation fee of R2500 which is paid off in less than 9 months when you compare to the similar service w/ Vox at R1400/m. Although on their Pro bundle, vox give you for free VoIP calls nationally which I certainly would not make to a point of paying R200 more per month. Cybersmart charge for National calls but it is as low as 11c per minute. Cybersmart also provide you w/ a router w/ 2 RJ11 ports to plug analogue telephone lines so you can use your existing phone handsets to make VoIP calls which Vox does not provide (they just give you access to an application to install on your mobile to answer and make VoIP calls and that's only on their Pro bundle I understand).
Overall my take on it all is that the competition of ADSL ISP seemed pretty straightforward to me while the world of FTTH is a different ball game altogether!