Reply to S4 For a Wedding?

Hey everyone. I've been a Serato user for years and just recently switched to Traktor. I've had the S4 for about a year but had a ton of issues with it while using a PC. I recently purchased a MBP and have started using the S4 and switched to using Traktor. So far no issues. I have a wedding coming up and wanted to check on the stability of running this in an environment where any kind of instability is unacceptable. I'm hell bent on using Traktor and I'm willing to get an X1 and use a standard mixer if I have to. Just wanted to see if anyone had any opinions or points to consider on using the S4 at a wedding.

My setup:
S4, F1, 2 Technics 1200s, MBP