Honestly, this castle probably won't blow you away.
But its worth a look.
Located near many other major tourist sights, you can easily see this place without going out of your way.
The entrance fee is not expensive. The inside is kind of small, but rather has rather interesting historical artifacts (More interesting than Osaka castle, that's for sure)
There's an alright view from the top of the castle too.
Why not visit? Its nearby
The surrounding park has cool stuff too, be sure to have a stroll!