As a fan and owner of several Aspire tanks, including the Naut mini, the 2 and the X, the tanks themselves are brilliant. However, just of late the durablility of the 1.8 BVC coils i use in the mini, have been crap, lasting only 3 or 4 days at best. The lower ohm coils seem to okay...but i'm fast running out of patience with the 1.8s. I also own a Zenith...an easy tank to live with..but whilst i do like it..it doesn't quite perform as well as the Nautilus. The flavour & vapour repsonse isn't quite as good as the Nautilus imo. But i do use it everday.
As for finding a better tank..well..i've taken the plung and bought myself another Aspire tank...the now obsolete Triton Mini. Why this one has been taken out of commision so early, when it's only been around 2 or 3 years, i don't know..but from what what i've read up about them, the clapton mesh coils (1.8s) for the Triton are superb for flavour and vapour production. They are able to wick high VG juices (up to 80% i think) and run at higher wattages than the BVCs.The Triton is also able to take the Nautlus BVCs coils as well, but from what i've read these don't work as well in the Triton.
Now granted, i've yet to receive this tank and try it...but if does outperform the Nautilus, then as long as the coils are availble (there is a RBA kit available for it too), then the Triton may well become my new daily 'runner'. The coils are a little more expensive...and i found it quite hard to find the silver tank (there is a standard black and gold plated versions too, but i couldn't find a cheap gold one anywhere), they are still available from a few british suppliers.
But getting back to the original Nautilus...it's still a hard one to beat...if only Aspire can sort out it's wayward QC on the coils for them. I thought i had fixed the shortlife fault yesterday, when i noticed the tiny little contact pin in the base of the tank, was partially missing, which meant the coil wasn't properly connecting with the mod. I fixed that with a spare one i had....buuuuutt....these little BVCs still aren't playing ball alas. I think Aspire's QC seems to have dropped in the last few months...what a shame.