It's a useable shield, great catch. It has terrific overall stats, the only regrettable stat is poor block. If it has better block than what you have now, it will be an amazing boost for you. I still use this
Legendary Mithril Buckler of Protection and I've had no problems surviving or killing enemies with it.
Because our shields have Strength, Dexterity, and Endurance they are better for 1H warrior. In my opinion Force Shields are overrated especially on lower level players, who don't have as much mana. I think any SDE Buckler with good stats is better than a non-SDE Force Shield with mediocre stats, at our level.
Of course Legendary Reinforced Buckler of the Barrier with SDE is the most preferrable, but I haven't seen any with stats I like yet. I'm happy with a cheap thrown away other kind of SDE Buckler, like yours and mine.