[..]I noticed that the manufacturer had changed the formula by making it more concetrated and adding enzymes (protein stain-removers found in Tide and Gain). I was a little concerned because I have a front-load washer, and the Surf box doesn't carry the "HE" logo.Thankfully, the Surf powder is not very sudsy at all, and seems to work very well. My white socks and gym towels, which usually get pretty grungy, are coming out much whiter. It also seems to get out food stains well, thanks to the enzymes. One thing I like is the "Spring Burst" scent, which is less overbearing than the Gain HE I used to use, but has a clean "bite" that makes towels smell fresh all week. Surf comes in other scents as well.Overall, I think Surf packs a lot of clean for the price.