I use an array tank every day and have done for months. This thing won't crack, won't brake and can reuse this pesky original CE2 XL insides for ages longer then the standard plastics stand up for.
I've had no issues save for one. It remains a mystery to this very day, below follows a brief transcript of events:
It leaked around 3mls of rather good RY4 allover my hoodie when I was out in the cinema one night. Suffice to say this was a tad upsetting. It's never done it since, but I've been more cautious of it also, taken it out less and left it for at home only vaping. I will say, the only diff on this occasion and any other is I left it off my E-power where I normally leave it, even in my pocket. Quite why this would cause it to leak with no risk if misfire when off the P.V is a mystery indeed.
If you like CE2's but are fed up of leaking, cracking and replacing tubes, get this, it's awesome. It holds 5mls of juice, it's built like a tank. It's all good.