So now that the dust has settled a bit what's people's take on the cult?
The cult is gonna absolutely change the meta with its potential to absolutely annihilate it's opponent on the first game turn and it's ability to dominate the maelstrom and eternal war missions. Having said that Tau are probably the one army that's best equipped to deal with the genestealer cult.
Who goes first is plays a massive role on how the game will proceed. When going first you can pick out the units that are going to charge you and try to block as many units from going reserve as you can. Kroot also play an integral role in this match-up. If you cannot prevent the cult from getting into combat with your heavy hitters you're pretty much handing the game to your opponent. I'd recommend atleast 2 units but there's no shame in bringing more.
If you survive the first turn things usually start pick up in Taus favour. Being able to intercept, and overwatch if needed, the units that are charging you from reserves should buy you enough room to get in the game. The drone-net is worth its weight in gold with the intercepting markerlights.
In a more competitive environment I've found the Piranha firestream wing to be absolutely devastating in this match-up. The shooting from the drones works well against them since most of them are, apart from the purestrains, T3 with a 5+ save. More importantly they allow you to keep making wrapping around your hammers and plug any possible charge lanes to your workhorses.
My personal opinion about the cult is that they're just what this game needed. Cool rules, really competitive and can murder almost any deathstar with a few key rolls in the beginning of the game. More than likely were gonna see other armies finding the need to spend points on wrap units to protect their other units which again plays in favour of Tau.
What about the rest of you? What have you found to work and what doesn't?