Very tricky to get a proper balanced view from anyone other than a modular student who has studied at more than one of your target schools - how else can a direct comparison be made?
I found OAA (when they were OAT) highly competent and professional on the whole with only a few minor quibbles that seem to be common complaints across most of the schools (poor fleet availability). Can't speak of their employment assistance through direct experience - but anecdotally it seems you have a better than average chance but you will have paid for the privilege of that elevated opportunity to work for a LCC.