I've only watched the US version and I do enjoy it. However, I really liked the earlier seasons much more. I feel like things went downhill after Jim and Pam's wedding or baby. I really don't like the new story line with Brian.
I watched the first few seasons, but then...more and more of my favorite characters started getting less air time and I just sort of stopped watching. If you like quirky humor, I would recommend Community! It's great!