Imbuing would seem a lot less overpowering if we just got rid of the exaggerated claims some people make about what is actually possible.
For example, I made a long-desired radiant scimitar for my warrior. It has:
undead slayer
SSI 30%
HML 43%
HLL 28%
DI 40%
Ideally, to be classed as 'uber', it would have had more damage, the max being 50, and more life leech. But
That's all I could fit into my 500 weight allowance.
All magic loot, no matter what monster it comes off, is now useful. There's no such thing as 'junk' magic items now, they're all potential magic residue or enchanted essence. This expansion, more than any other, has made things useful. Heck they even put in a use for beeswax! Though not, I admit, in imbuing.