Bearn can be described as a Support-style CV.
Pros:
She has excellent Fighters, and a lot of them.
She also has a very comfortable speed at 170 knts.
She has remarkably accurate Skip Bombers that can consistently hit a broadside Destroyer for 2-8k damage (which is a lot at Tier 6)
Cons:
As a Support-style CV, she lacks damage
Her AP Bombs like to overpen whatever they touch, so their damage output is often low excepting Battleships she can citadel or higher-tier Cruisers where they may not overpen their armor.
Your Skip Bombs will be over-used and you may run out early in a match if not careful
Having only 2 plane types means only 2 Fighters deployed at any one time.
Personally, I enjoy her a lot. It's up to the test of time to see how she's adopted by the playerbase~