I bought a Radiator 3/2 suit. The reason for getting a new suit is that my 4/3 Fireskin takes a week to dry unless I put it in the washing machine on the spin-dry cycle.
I used the Radiator both days last weekend with a Radiator rubber vest underneath. It's adequate for Melbourne winter riding. It was sunny on Saturday but cold and a bit rainy on Sunday.
The Radiator was ok for a 3 hour session on Saturday (with a bit of standing on the beach during lulls) and just ok for an hour on the chilly Sunday arvo.
The suit is pretty warm but it flushes pretty badly during falls or duck diving or whatever. There's no tricky neck flap or zipper treatment. I ended up a bit cold around the shoulders. The RipCurl 4/3 is plenty toasty and warm for as long as I want to stay out.
The Radiator is super light, easy to get on and off and dries overnight just hanging in the garage. It's perfect as a mid-late Spring suit and adequate as a winter suit.
It's also quite cheap at $348 express delivered. A similar specced suit from a major manufacturer would be around $500.
The inside is shiny silver. It might be fun to wear it inside out to freak out all the fashion slaves on the beach.