Hi Alice,
We have used MEP Y2 for 1 year (recently finished) I think it is a wonderful curriculum and would have had no problem continuing but…I felt I needed easier to follow lesson plans/teachers guide, just to try and make it less teacher intensive and therefore I felt that would make for a smoother day. We have now started with Horizons 3 (& Times Tales multiplication & division). Horizons seems very similar in style although created for homeschoolers so easier to follow teachers guide (for me). It is just like MEP, with a spiral design (penty of repetition) but in colour. We may go back to MEP if it doesn’t prove any easier for me but we are doing well with it so far. I would not hesitate to recommend MEP to anyone, knowing that there is a bit of tweaking involved. You can’t go wrong with it as long as you look at the lesson plan in advance of the lesson!
Jeanne at Peaceful Day, as linked above is where I started on my journey with MEP.
It seems to me it’s not so much the resources we use but our delivery as a teacher that is or isn’t effective. So our change was to suit me more than my child!!
Hope you find MEP helps you on your math journey.
Blessings, Renelle