I have a wheelset with 424s and I didn't notice a difference between them and Aerolites either when building or riding. I have a road wheelset with Bitex hubs that I only ride in the dry, and while they work just fine, I have them set aside for now because Shimano hubs are quieter. The XR200 wheelset I mentioned has a Dati hubset (which is quite light, like 289g for the set) and I don't like the rear at all. I can't explain exactly what is wrong with it. When under high torque, it feels funny, like the bearings are binding. Maybe the axle is bending? I ride my cx bike on singletrack with some 30% grades so it does take some stress. It is going to get switched out for something else.
Bitex has a pretty good reputation. Some pros ride on them. I've seen photos, I think it was the Tour of California last year.