I finally got my set, canada post had a strike going on so I got it late even though it got shipped out on early December.
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The PBT quality is quite good, it has a texture similar to other OEM PBT sets. I am happy that the spacebar is not warped as this seems to be a problem with other PBT sets.
This is my first DSA set so I am not sure if the typeface alignment is normal to be all over the place but the worst offender is on the wasd cluster, the A is quite off the middle:
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All other keys are either perfectly in the middle or a millimeter or two off towards the bottom left. Other than that, I got the modifier sets and they all look good and have no issues as above. Maybe I got a b-stock for the base set -.-