My 23 DV CC IMO did not need alot of improving.
I did get tired of the livewell lid allowing water to splash the back of my legs so I installed a gasket.
Replaced the bilge hatch with a 0 flex Beckson 1424.
Used some 3M spray glue and put down some gray anti-fatigue mat from Lowes on the floor of the electronics box. Mounted the electrics over that. Wallets and keys no longer rattled or slid around.
The shock support that keeps the electronics box door open will only last one season before it can no longer keep the door open. Replaced it with a SS spring hinge which keeps the door open without the bouncing and will last forever.
Make sure you check all your hose clamps. Don't over tighten the ones on the fuel line or you will eventually cut into the hose.
Amen to the new boats having the SS thru hulls! Such a simple thing that really doesn't cost much more.
jim