Been riding the Rome 390 Boss and the MOB Boss for about a full season now. I like Rome boards and the company is second to none in warranty issues. You need a part just email and two days later you've got parts, for two years! But that being said I can't say I'm totally thrilled with either of them. The MOB was SO much easier to setup. Really just drop on the board and go. Small amount of personal tweaks, straps, high back rotation, canting, and it's all good. The 390's on the other hand were a bit more intensive. Took me about three times up to my local mountain to dial em in. So if you're looking for good to go out of the box and you like Rome go with the MOB Boss. To date on my 390's I've has two broken straps, all the buckles failed, and some cosmetic chipping on the aluminum frame but who really cares about that it's a binding. Rome has replaced every part for free but between the long tweak and dial in time combined with the parts issues I'm so so on these. Honestly if they break down again I'm dropping my five seasons old Union Forces onto my all mountain rig.
Current setups are:
Lib-Tech TRS 162 with Rome 390 Boss -All Mountain Setup-
Rome Artifact Rocker with Rome MOB Boss -Park Setup-
I know you said you weren't thrilled with Union but I have to say if you're looking for the most hassle free, durable, and setup and forget binding on the market in my opinion is that the Union Force is one of the best. Yes they have their issues and the toe strap is the most common gripe. Really it just takes time to break in and if you set it up right from the start it's minimal break in time. I've had mine for five years and they happen to be on my beater board for a reason, because they can take anything I dish out at em. Good for both all mountain and park riding too. Yes the 390 Boss kill them on tweak ability and comfort due to the canting option. But the Union Force damn near BOMB PROOF. I swear they test these things with a sledge hammer before they released them. I've tried Burton, Rome, Ride, K2, Flow, and Raiden but I still think the Union Force is the better binding, simple in design, durable, set and forget from one board to the next. Mine are five seasons old and aside from cosmetic damage, and that's nothing really it's a binding, they are still fine. Before you cross union off your short list ask some people on here about the Union Force, most will say the same things I have about em. Good luck.
Last edited by Cyfer; 01-16-2014 at 07:46 AM.