Out of all pods I've used, getting the Vaporesso osmall has been great - I find I get good use out of them up to a week. Flavour continues through clean, great draw, only downside is they're disposable. They're unable to be reused, and unlike using the vaporesso degree (which is $10 for a 2 pacK) these are slightly more.
they last longer than other refillable pods
Can leak sometimes
Does leak occasionally though
would prefer 4 pack but good overall