they are,,, just ok. tobecco is the only one i know of who is still actively mfg notch coils for the super tank series, which fit a tony of other tanks that take original atlantis coils. the tobeco super tank notch coils are ok. no big wow's no bad flavor, they are just a different type of coil.
i have some of the 3mm and 5mm raw notch coils and rarely use them. they are too low ohm for normal use and can only handle 30-40 watts. they fire very very quick and any higher wattage will burn the shit out of the cotton. but it doesnt mean the low wattage is bad, it just means that they are low wattage driven to equal higher wattage coils.