What if Berserk was unfinished? Would you still appreciate it?

If possible, I would definitely appreciate the amount of dedication and time Miura has put into the series. I think, he's told a complete story with the series so far in it's self, that if something (GOD forbid) were to happen to Miura, I would be satisfied with the manga.

But, that said, let's hope and pray, the series does continue for as long as needed and the we get the epic battle we deserve between Griffith and Guts.

In a word yes. The art is unique and still stands as amongst the best ever in a manga. There have been many memorable and moving moments. I do have a feeling it won't be completed...considering the release rate as well as the endless multitude of things to resolve. However a majestic world has been created with incredible detail and complexity.