Scorchisio: a lot of the clones, particularly those with prebuilt coils, often still have the machining oil from the manufacturing process. This can taste awful when it gets in your vape. The ceramic cup in the Oddy is held in by a flat head screw, which needs undoing and removing before it can be slipped out. Be careful, they're pretty fragile, although you should have a spare if you bought the Oddy new. I tend to fully deconstruct an atty, boil it then rebuild my own coil. For the Oddy, I leave the ceramic cup in situ as it's a bugger to line up & screw back in properly. It only gets removed now if I'm trying some exotic coiling/wick method or doing a flavour switch (Menthol to Custard or such). It's ceramic, so it's very tolerant of extreme heat, so the quickest and easiest way of cleaning is to give it thorough burn the torch. Don't use a non windproof type lighter as you'll cover it in soot!
I always boil my atties twice, for 15-20 minutes, changing the water in between and then allow to air dry and cool down overnight. This removes any nasties - machining oil/lubricant, lathe splinters/burs etc.
Stick with it buddy - it's a fiddly bugger but when you get it right, the quality of the vape is very much worth the effort!