To be fair like I wouldn't say NCL is growing rapidly. A shadow of it's former self in terms of growth/being one of the fastest growing in the UK, but hopefully with United comes prosperity, I look forward to breaching 5mppa once again in the near future!
Anyway back to LBA, I find it a perfectly pleasant airport to travel from and it was the first airport I passed through unaccompanied, LBA-BGY-LBA in August 2012 when I was 14.