My ICOMM just died. I loved it a lot up until then, but its dead now. It just stopped working at the end of a troop, and I thought it was just the battery in the AKER that needed recharging, but sadly no. I got it in Febuary 2012.
But if you like a simple setup that works well, I do indeed recommend the ICOMM setup.
I have a ROM/FX as well, wich I had lying around for a while, since it seemed a bit more complicated to install, compared to the ICOMM, and it do sound better and you have many configuration options in it.
But ROM/FX have a very long waiting list. Mine took 6 month to arrive.
ICOMM: Good sound, simple to install, quick shipping.
ROM/FX: Super sound, many options, not so simple to install and many loose wires, long waiting list.