As for trim issues there are 78 seats and you are allocated 1 which you sit at for in most cases no longer than 1.5 hours. That's what you pay for that's what you get. I am with MOL on this one and only this one, if you have a problem then go somewhere else.
I think you will find that that assumption was blown out of the water about a week ago on this thread. You quite often don't get the seat you have quite handsomely paid for. And more often than not you get no recompense for relinquishing said seat at the behest of the hi-vis jacketed Generals.
Furthermore there is no other option on MAN-SOU/INV/BHD/LRH/RNS/NWI, so poor buggers like us have to use the likes of BE with your laughable low fares.
And before you start, no I am not taking the train.