Last round i had both protection spells maxed out as a warrior. In the end i regretted it.
Why? Because in general you have enough life to get through anything, you'd rather invest other (agressive) skills.
Good things about the shields IMO:
-they stop you from poison effects (which takes very little health away if you have good resistance.
-They form a (very small) barrier or buffer when the sh*t hits the fence.
Because really when you meet a great adversary, your shield is gone in less then a sec.
End conclusion IMO: It's not bad, i am not saying that, but if you really really want the shield, i advise you to go for the spellshield in the first place, which is for magical attacks.
Having both shields last round, i noticed that mostly my spellshield was active, rather then my fysical shield.
