One of experience if your interested in history, s...

One of experience if your interested in history, ships or engineering. Walking around the ship, at the moment has 1 way system due to covid19, but you can see everything.
Two small museums attached and nice views surrounding it.
The tickets are pricey, but worth it if your interested in this sort of things.

I wouldn't recommend for families with really young kids as I imagine they might get bored.

Gift shop good and no more expensive than your average tourist attraction.

Overall worth a visit if this is something your interested in. We enjoyed it massively.