Had the Traveller since early 1990s at least. Been tying trout, salmon, steelhead, pike, bass, flies from 3/0 to size 14s. No problems what so ever with the Renzetti to date, no maintenance etc...
There may be better out there now but I don't think you will go wrong buying the Renzetti.
Not seen the Dynakings will see if my fly shop has them. Even if it looked good, you can only use one vise at a time, wish I could do two flies at once some times... :eyecrazy:
My .02 cents