Received quickly and not a terrible tank.
Bit oily but cleaned, drip tip o-ring a bit hairy but broke them off.
Came up atomizer short so I pulled the circle of felt out (not sure if should be in or out) and it was OK.
Not a bad toot.
Gave 2 away, one was great for a tank then leaked after re-fill it was reported to me. Told him to persevere, I could not offer any advice as not used a tank in my one yet, only gave the second away today so no feedback.
Regards the 'loose' top fill. A vape band around it would stop it turning open in your pocket.
Summary - for pennies I have zero complaint, I will probably get an RBA for it just in case it is needed in the future.