Don't like to moan…but if you insist.
One propeller shaft that was machined very badly and would bind up regardless of how I fitted it, the replacement was OK, still cheaply made, but OK. Also from the same supplier a universal joint coupling was bored at nearly 5mm for what should have been a 4mm shaft, again replaced OK.
The one I gave up on was a plastic resin searchlight, that was shown in the picture as cast metal base. the plastic base was so fragile that it just broke on assembly, it really was so brittle that it would never last, hence gave up on it.
It's not that the suppliers aren't willing to replace them, more the fact that they supply the parts like this in the first place. I know the market has become very much smaller for these sorts of items but it'll get even smaller if this is the way forward.
moan moan moan…