The Gallente Frigate bonus is straightforward and should already apply at its maximum, as Frigate V is a requirement for the T2 hull. However, the T2 Assault Frigates skill bonus needs some explanation - it provides strong soft bonuses which improve the versatility of the hull. These are increasing the range on your turrets and giving you space for backup/redundant drones. These bonuses mean you can fight at range and still apply your turret damage - indeed, it is possible to hit out to the drone control range of 55km with a well skilled T2 railgun, or do damage out to scram-kiting range with T2 Null S ammo loaded in blasters. The range bonus makes the hull viable in a sniper fleet, or gives it potential to compete with a scram kiter using a blaster and brawler loadout.
The slot layout is best suited to an armor tank, which likely fills up the powergrid with a decent 200mm buffer plate. However, a fair shield tank may still be possible for sniping or mobility, leaving more room for damage modules.
It is strongly recommended to have a full flight of T2 light drones with a long control range, requiring:
Drones V
Drone Interfacing IV
Light Drone Operation V
At least one Racial Drone Specialisation III
Drone Avionics V
Drone Navigation III
Drone Durability III
T2 Hybrids are also suggested:
Gunnery V
Small Hybrid Turret V
Railgun/Blaster Specialisation III
Support skills, such as Sharpshooter and Trajectory Analysis are vital, and the damage/RoF DPS support skills will also be of help.
And a T2 tank is vital - suggesting armor:
Hull Upgrades IV
Repair Systems III or Armor Layering III (Active or Passive, respectively)
EM Armor Compensation and Explosive Armor Compensation
Armor Rigging III (to reduce the speed penalties of an already slow ship).
Consider Navigation support skills as part of your defenses, especially in PvE.