I quit for 3 months then came back (ive been back since March 2013). Blizzard has fixed quite a few of my issues with the rep system. Still dont plan on being able to raid with more than 1-2 characters. You will not have time to do much with other alts but get them to 90 a few at a time.
the newest raid (throne of thunder) is definitely old school in about 2/3 of the encounters so thats been a big plus.
The maps were originally very slow and tedious but that changed as gear was accumulated using the new badge rates.
Overall id now rate it 3.5 to 4 with the improvements in the last few patches.