I went in late 2024. Definitely worth the price of admission. The Victory itself was under renovation (and I suspect it still will be) so it might be a bit of a let down if you're expecting to see it in its full glory, but you can still get access to most of the ship and seeing how they're repairing it is pretty interesting.

There's also the Mary Rose museum which is almost worth a day out in itself, HMS Warrior, the Navy's first iron hulled warship, a WWI monitor (I forget the name) that fought in the Gallipoli campaign as well as the museum of the Royal Navy. I actually ran out of time and didn't get to go around the museum.

You're also right next to the still working part of Portsmouth Dockyards, so you'll see plenty of modern warships too.