This one divides the populus on here. I guess it depends on you and where / what you ride.
I did the overshoes thing – which works but is a faff and the overs fail after a few months if youre lucky (depends on miles, conditions etc).
Shimano mw80 (and this years replacement) are “put on – go ride – take off – have a cuppa”.
But that does come at a cost.
At the real extreme – if it’s proper baltic (-15 or worse)- or you get cold feet – mw80’s dont really cut the mustard – you need overshoes too. I got 2 pairs now – one for normal woolie boolies and one sized up for really really thick merino hiking socks. BTW – I cant find overs that fit over the larger mw80’s.
Lastly: woolie boolies – What ever you wear start with them: warm when damp, dont honk, etc etc.