The RAI centre is HUGE. The biggest event of the y...

The RAI centre is HUGE. The biggest event of the year that runs there is the ISE in February (an AV fair). If attending any event, getting to the venue is pretty easy as it has a metro stop righr in front of it. It will get extremely busy during fair hours, but that's just normal. If you have a stand at any fair held at the ISE I HIGHLY recommend staying in an AirBnB or hotel nearby to avoid crazy traffic in the morning. You'll save time and money.