I get no significant shaking on the Ironman. It's a stout unit. Keep in mind that the 'shaking' you see is the difference in movement between the hood line and the bumper, therefore it's not necessarily the bumper that is moving. Could be soft body mounts allowing the body to move around the frame, although if it's a high frequency shake then yes, it's most likely bumper vibration.
As far as a review goes... The bumper arrived extremely well packaged. In fact, it took a lot of effort just to get the silly thing unwrapped.
The Ironman support strategy utilizes a winch cradle that mounts between the frame rails. The bumper then mounts to the cradle. This is similar to other bumpers, however, the Ironman uses shims to fir out the gap created by the frame horns. I've read where other brands require trimming of the horns. While I don't consider trimming to be an unpardonable sin, I'd rather cut as little as possible. That said, there was one user with an LX who had gap issue with the shims. Don't know if this was caused by a delta in frame design between LC and LX (unlikely) or a mis-shipped set of shims.
Here you can see the DS frame horn and OEM recovery point. Also note the proximity of the A/C lines.
Here's a pic of the installed shim. This is PS below the frame rail.
A couple shots of the installed cradle. Note the slotted holes on the front. These are used to adjust pitch, bank, and height of the bumper. The 'Swiss Cheese' area is the crash crumple zone.
I didn't get any pics of the winch mounted separately, but you can pretty much see the plate where it mounts. I have a Titan 12,000 lbs TW12 so my guess is just about any full size winch will fit. Don't know about the new Xeon as they have a larger height due to the cross-over frame design.
Installed pics:
Looking at that last pic, I could probably shore up a lot of that gap without any problems. I want to run it 'loose' for a while to see how it responded to flex and just haven't gotten around to adjusting it.
The light kit is superb. The orange LED couples to the blinker, the white LED to the running lights, and the fog (obviously) to the fog light. While not as bright as a Rigid Dually, these are some impressive little foggies. I'd say 2x - 3x as bright as OEM. They make a noticeable improvement. I just splice the turn/driving up into the corner lamp circuit next to the headlights.
The wiring harness is of very high quality. It comes with an an awesome OEM style switch that pops right into one of the factory blanks. Also comes with a relay for the fogs, although I just use the factory wiring.
All in all, very impressed. It's unique enough that you don't look like everyone else's ARB. Granted, a custom bumper with better recovery points would be the ulitmate, but at this time there aren't any that I care for. While the Blueberry is an exceptional piece of hardware, it has too much of a 'bikini' look to me and is missing the grill guard.
Not showing is the under-bumper guard; a plate that bridges between the bottom lip of the bumper and the OE skid plate to keep debris out of the winch area.
Happy to take other pics or answer other questions, just ask...