I've had very good success with (unupgraded) Venom boats. While Venoms got worse in shooting, their durability is really decent. Decent enough for some turns in rapid fire range.
Especially with a Blaster and PGL you also bring a surprising amount lot of utility to the board.
And every time the enemy player shoots my Venoms means that he isn't shooting my Ravagers and Raiders.
Moreover, focus fire is king in this edition and with the maneuverability of the Venoms I can bring them exactly where I want want them to be. Dropped a Void Mine on a bigger MEQ squad? Get a nearby Venom and shoot it with Blasters, poison and the PGL.
The unit might not die in the shooting phase, but it will in the moral phase.
Nonetheless, I also want to try out a Desintegrator Raider with 2 x Kabalites (with Blasters) next time and see how it goes. I am also very tempted to run 2 x 10 fully kitted out Kabalites (Agonizer, Blaster, Lance and PGL) but I can't get my head around how to use them properly.