I actually really like the PLU...a lot. The color is perfect, not beige or off-white, it's true white. The Filco's are more of an off-white.
The build quality could be better, but I'm not complaining. It's designed, almost identical, to the Filco. Only a slight difference in function buttons and a line that goes through horizontally between the F and number rows. The casing is more plasticy feeling versus the Filco's brushed aluminum feel.
The stock keycaps (at least on my Otaku set) don't sit on the switch like the Filcos do. They are not as tight of a seal, which I actually prefer. If you've owned the KBC PBT keycaps, it's something similar to that. Feels a little lighter/loose than your standard Filco browns. Loose may be the wrong word, it doesn't rattle or anything.
Only bad thing I hate about it is, that the spacebar doesn't have the same type of stabilizer that the Filco uses. I don't even think it uses a stabilizer in the spacebar...
Check out how awesome it looks in my sig.