I have dd in year 3 and ds in yr 2, both in the same class and as the year above is v large they may be together more often than not.
Positive is that they can tell me loads about there day as they fill in each other's gaps. If the teacher has asked them to do something or bring something in then at least one of them will remember.
Negative: ds is bright, particularly with mental maths and spellings which in the past has knocked my dd's confidence. However, I expressed my concerns to the teacher who is very aware that dd can be over sensitive about some things and issue hasn't surfaced yet.
Another positive, they are both in the same spellings group so we only have one set of spellings to practice each week!
Generally I think they are lucky to be in a smaller school where they get to mix more readily with different aged children and where there are plenty of jobs to be done around the school but not so many children to share them between, giving them a greater sense of responsibility and ownership of their school.