Well, it is a conference centre. Nothing more.
It is a professional venue and the security is friendly and helpful. However there are no ATMs there so you'd better not plan on spending cash there unless you bring your own stash with you.
Parking is a bit of an issue as the onsite parking fills up quickly and for almost any show/exhibition you will need to park in the nearby Sandton City or Nelson Mandela Square shopping centre (where there are ATMs too).
The toilets are well maintained and clean, so that is a plus.
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