Pieces leave much to be desired...
This is definitely an older model, so I'm trying not to judge too harshly.
I would only recommend if you are a die-hard Gundam Wing fan and you want to complete your collection. If you really love building Gunpla and want to spend A LOT of effort refinishing your models, then this one might be good for you.
Personally, I just enjoy building Gunpla casually, and I haven't gotten into painting an customizing my models yet. So in terms of just enjoying a casual build and still getting a nice result, this may not be your favorite.
Sandrock was not really my favorite anyways... so maybe I'm just biased.