First of all, it was a great idea to let players change their jobs without penalty for Styx points. But there are still some problems:
1. Only a few people will ever be able to pay 500 Styx Points. Maybe this will be different in future but for now it is too high.
2. The standard penalty about 7 days till you can join another job is just insanely high. Actually it is faster to create a new char and get it ff in 4-5 days.
I would recommend to change it to 1day to make it more fair. Also the "Job penalty time reset" for Styx Points will still be attractive.
Related and also necessary:
Gold from thiefing
Selling the loot is almost pointless atm..