When I see people using the "sandwich" method on me it is usually pretty clear that the only reason they are giving compliments is just to soften their criticis

When I see people using the "sandwich" method on me it is usually pretty clear that the only reason they are giving compliments is just to soften their criticisms, so I would rather just get the criticisms on their own. Not every criticism or set of criticisms needs to be accompanied with something positive. If there are many points of feedback, some positive and some negative, I think they should be split into logical categories, mixing together positive and negative feedback, rather than trying to completely surround criticisms with compliments.