I think it took a while to get going and that Forster shouldn't have shied so much away from lightness. Like it was literally too gray in the Hundred Acre Wood during the happy, "sunny" moments.
Even so, it is a charming, heartwarming movie overall, and has a gentle sweetness that felt true and endearing. It's not a great movie, but Pooh was affectionally realized and Eeyore was hilarious. I think it is about a hundred times better than Beauty and the Beast or Maleficent. Alas it did not make a lot of money, so Disney will ignore that this one had an underlying warmth and just go for more cold remakes.