I have been using oxiclean exclusively for 10 years. I have bought the fragrance free type in the past, but these days I opt for the 14lb box at Costco and just rinse a bit better. I use a full scoop in 4-5 gallons for cleaning and a half scoop for soaking fermenters. One scoop is about 4 scoops of PBW.
PBW is nice, just very expensive.