I have not been on a 230, of course. What I am doing is comparing the hypothesised negativity about the 230s (viz: they are old/recycled etc.) that seems to render them wholly unsuitable for anything in some commentators' minds, with similar factors as they apply to things we actually do have working the network now and are proposed for the future. If you applied the same logic to the 150s (etc.), then you'd similarly dismiss those, for two of the three main negativities apply at least equally.
And, once again, I know that Northern isn't getting 230s, and don't quite understand why Northern keeps coming up in this context.
My contention remains that (unless and until we know for certain otherwise) to blindly dismiss the 230 as being unsuitable for use on huge parts of our national railway network because of these same three factors is flawed decision making. Despite its new trains, Northern will almost certainly remain short of rolling stock and will continue to operate trains that are inadequate and unfit for purpose for the duration of the franchise. As will various others. The entire system is short of rolling stock. It matters not which operator gets which train and where they use it (within route compatibility constraints) - as long as there are more. If the 230 forms part of a solution that will provide more then, bring it on.