Because they are from the same company, it may go without saying. But I'll share anyway:
I am currently using the eleaf iStick Pico and have gone through various coils (including the ones that came in the mod box) and none of them satisfied me.
The other day I received my order of new - and different - coils. Eleaf ECL 0.3 SS316L coils.
They are unbelievable and amazing. 10 out of 10 in every respect. They last even running at 75 watts continuously and regularly and in TC mode and they conserve battery life like no other.
Flavor is out of this world! Best tasting coils I've used since I first started vaping. Frankly, until these coils, I was never really satisfied with flavor from my coils.
I highly recommend it to those with a 75 watt Pico. Not lower than 75, maybe, however, as these coils are made to work at 60 to 80 watts.