So pleased I gave these a try...
Just brilliant, so very pleased I've made the swap. I have a large capacity machine, but use just 1 sheet of the non-bio unscented for most loads, and 2 sheets if it's a particularly large / grubby load (we have hard water). I particularly love how simply clean the laundry smells. No need for fabric conditioner either - I just add some white/distilled vinegar to the drawer for things like towels.