I have 7-8 of the lines from Northern Sport, the company that makes Aquanova along with other private label lines. All mine are factory seconds.
With little exception, I like them just fine
I think that they may have a bit more diameter to them than the more expensive lines, but they're supple and cast and float well.
I tend to beat on my lines that I use in the salt and in other less than gin clear waters, so the cheap lines work very well for me