Decided to pass on the 5x5 for now, but I'll probably order one later. I did however order two of their 3x3 DIYs (which look to be Type C): **link here** I'll be sure to post my impressions once they arrive. 
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That's great, at least it's a Type C. Hope I won't be missing any parts though... I'll post here when I receive my black DIYs.bump.
i received my transparent glow in the dark diy cube today. yes, i can confirm it's a type c.
there are 2 sets of 6 color pvc stickers provided.
there's some flash on the corner caps and the center caps.
parts were missing from my shipment. 4 small washers were missing and the core was jammed into one of the centers. don't ask me how.
however i'm still satisfied.
in total it took 14 days. i live in Singapore.
depends on where your letterbox is. so if it's 30km from your house, it's not my fault.
edit: lol i think breaking my core is the only way.
I just received the two PVC Megaminxes Tom and I ordered =).
Have anyone bought a 3x3 DIY from DX?
I am thinking of buying one but i don't know if it is any good.