Congrats.
If you're booked into a specific category (i.e. AKV Savanna View, BWV BoardWalk View), you should get that category. More specific requests are never guaranteed. Some members will tell you they've had great luck with requests being granted...others that they never receive their requests.
I wouldn't recommend asking for a specific room. If that room isn't available, they won't know where to put you.
More productive / reasonable requests are things like a specific floor, near some resort landmark (close to the pool, near the elevators) or perhaps a view request for resorts that don't have separate categories (SSR Downtown Disney view.)
Hope that helps.