The whole system works very well. The flavours are great and becuase I can change them quickly, I'm finding that I'm switching between flavours more regularly. It's great to have the choice. The only downfalls are pricing and limited ranges of flavours. I would like to try some other flavours like strawberry, orange, more blended flavours etc. At £7 for 3 caps, I'm not seeing a great difference in pricing between this and cigarettes. I was never a heavy smoker but the prospect of saving money and health benefits are the 2 main reasons I've taken to vaping. Still trying to justify the money.