I use my Vodacom connection primarily in my BlackBerry Curve 3G 9300 in Sabie, Mpumalanga.
I rated the connection as Good (better than expected). I have heard some really bad complaints regarding the BIS network and slow speeds, but I have been on BIS for more than 2 weeks and I am hardly frustrated.
The connection is fast and stable. I rarely have problems connecting, although some App downloads take long at times on the BB Appworld.
I also have a Secondary Prepaid Data Only sim card that I have used in my 3G Modem and there were no issues to complain about either.
All in all, I am happy with the service that Vodacom currently provides, but I would appreciate if the cost of data (primarily data bundles) could be reduced.