Pricey for what it is, but it works well. Not really necessary if you are connecting with a water pipe. Otherwise, it's always good to have a clean spare.

I find it gives me a smoothly soft vape - the cooling unit is well built and going to last.
having cartridges prepped keeps my bp 100/50! This may not work for everybody, but it works for me !

I agree with bert 100 %

we needed a backup cooling unit so one could always be clean! works great! highly recommend!