She's got about 20% larger wing area, being derived from a bomber. Need to know more than wing-loading though such as the elevator movement and control authority etcetera. Usually larger planes have more docile handling.
I think especially if you watch that documentary (and assuming it's modeled realistically) it would be one of the toughest aircraft in the game. On a par or surpassing an A-20, which sort of makes sense.
The Beau gave a "relatively good" account of itself when dogfighting with 109s. Relatively good that means it depends on your expectations. Of course it was not a pure fighter and unlike the mossie, it could not simply leave the bandits in its wake. It was Britain's premier night fighter before the mossies took over, but that did not involve much elaborate ACMs. Light and slow it can probably keep up with many fighters in a turn, but will be easily out-climed and out run by most. An Israeli Beau got a maneuver kill on a Sea Furry during the independence war. Pretty funny that an obsolete twin engine fighter got a kill on perhaps the best prop fighter ever. The Beau pilot was a very experienced WWII veteran though.
Durability wise, I suppose it would be a good contender for the toughest plane in the game. The comparison with the A20 is probably valid, as both planes are small sized bombers with radial engines that shared many combat roles. The Beau had an extremely good reputation for durability.
I dont think that many players will make it their main ride, but it will not be a total hangar queen either. Very very useful in scenarios, serving in all theaters throughout the war, in many roles. In the MA, if it rolls out of the BH it will become the desperation fighter much like the A20 is used now when the FHs are down. For this reason, and to disable F3 view it should roll out of the FH. Decent attack plane and heavy fighter for the advanced players.