So, PLANET X sells Gipiemme Pista A40 Wheelsets at a relatively good price. They're supposedly Italian, there's even 'Pista' in the name and they look pretty nice. The hubs come with a traditional loose ball bearings, which is bit of a drag but so what.
In the original description Planet X stated: "We ordered sealed bearing hubs and these arrived with a standard hub - the hubs are cup and cone and a bit shall we say industrial". Right.
Out of the box the hubs don't spin too nice so you open them up... and what do you see? The damn hub has only five, FIVE, 5, balls in it. WTF?
Even if this is probably just an isolated case, like some worker left for lunch hour in the middle of packing the bearings and just forgot about it, do yourself a favor steer clear of these.