I've leveled the following in the past 2 weeks, since reactivating after a 5 month break:
2 Fighter 2 Pali ... up to 4/4
3 Cleric ... up to 5
2 rogue 2 wiz ... up to 3/3
4 Barb ... up to 5
I had no trouble finding groups. When there were none to join, I put up the lfm and it filled in a reasonable amount of time.