My phone came with 4.4, I rooted using iO and got my recovery using the Rec app. If I flash a stock rooted 4.4 rom (pretty pointless really) my data works fine. If I flash a rom such as that Power User one or AOSP based roms, I have no data. If I check the APN its intact and correct but nothing works except talk and text.
Ive done a full wipe before installing these roms.