Whatever service you usually get through their ADSL portion, you should get on their FTTH offering. So our questions using the normal ADSL package, have answers you can apply to their FTTH product
Do they throttle capped users? No. Uncapped they use a star rating system, and usually you'd only feel it during business hours.
Do they throttle torrents? Yes. Any ISP in the world every throttles P2P traffic because it can't be cached or proxied to save on bandwidth, which means if all 15 people (1:15 contention ratio) downloads at full speed at the same time, you would only get a 15th of the speed you paid for. This is why ISP's will always throttle torrents.
however will you see that often enough and will they throttle you into the ground? Not necessarily. And with a 24/7 connection, do you really care?
To mitigate getting crappy DCMA notices for downloading torrents, I use a seedbox overseas where I download via HTTP. Torrents are also not the preferred method these days, look into NZB
Having said that, Web Africa, as an ISP has been great. Their billing department sucks ass, but hopefully you won't have billing issues.