悪くない

It may sound a little strange, but I'm a bit concerned about "悪くない [waruku nai]".
Usually, when I say "not bad" in my own lanuage, I mean it really positively, as a compliment, but I kind of get the feeling that in other languages it could mean that it is literally not bad - but not good either; more like a neutral, maybe slightly worse than that. So basically my main concern is: if I said "悪くない", would someone interpret it as me trying not to say "it's bad", when I actually mean that "it's genuinely good"? For example if someone made me dinner, what would they think if I said this after the first bite?

悪くない can be used both positively and negatively depending on the context. For instance in your example, 悪くないねえ means "That's good", wheares 悪くないけど implies hesitating.

I see, thank you.
I kind of instinctively use "not bad" to compliment someone, so it's good to know.