I swear by them in the winter time, as long as its not too big or too small
Definitely harder to change diapers lol but I don't see any other problem with it
You can get thick pram suits etc for them cause we were given one when Mr was born, although he came in may and its been record breaking heatwave here so it no longer fits and hes never had it on. Can't see why a snow suit would be different x