Jungle Leona: Secret OP?

My last jungle Leona match: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1720044314/197504?tab=overview

Yes, I'm not in a pro circuit, but I love being jungle Leona. Such awesome gank and countergank potential, even if the clearing speed and objective control are bad.

Build Path

Start by getting Ranger's Trailblazer, but don't enchant it until after you have Sunfire Cape and Frozen Heart. Once you have those two items, swap the Trailblazer for Skirmisher's Saber so you can duel opponents and/or reduce incoming damage from an enemy carry if needed. Then you can get Enchantment: Juggernaut. Build more defensive items from there; you'll always want to max out your CDR as a pure-tank Leona for disruption power.

Mobility Boots are also really good until later on, letting you gank rapidly or arrive in time for counterganks. You'll want to trade them later on for Ninja Tabi or Mercury's Treads for better team fight MS and resistances.

Pros

• Awesome ganks, good at counterganks
• Gives your team one of the best tanks in the game. ;)
• Picking jungle Leona in draft early can trick your opponents who think you're going support (your actual support then counterpicks that Morgana).

Cons

• Extremely weak to invaders (i.e. Lee Sin, Kha'Zix, Udyr)
• Bad clear speed and objective control
• Cannot invade effectively

Anybody ever try this? It's loads of fun~!