The bolts seem pretty strong and I torqued them down pretty hard. Bearings are also the bigger sized ones so they're more durable in my guess. You can also run 2 hubguards on both sides of the hub.
Press-fit cones which you have to either jam a screwdriver in to get off or hammer out the whole axle. The press-fit cones also slow down the hub when you tighten them down.
Hubs always vary. Press-fit cones are not always super tight. The first Vandero 2 hub I got that you could put some hand force to twist and pull the cone nut straight off of the axle. Axle bolts, axle, hub shell, and bearings are all durable and great for the price as I already mentioned. Right now, the Vandero V2 has been on sale on Danscomp for a couple months so it's super great deal for the price.