I hardly play this game anymore. Therefore, I don't really have a main class nor especially clear bias. (We're all guilty to some degree tho).
From a BG/PVP/DUEL perspective, this PTS without doubt improves balance.
Let's take a break from the rage and cheer zos for their genuine desire for balance.
(...Now if it was up to me, I would remove classes entirely, including class-specific passives, and leave around 50 abilities in total for all players to choose between.
Imagine the work that could be put into making every single one of these 50 abilities useful, unique and enjoyable when you don't have to take class-balance into consideration.
We would have a more competitive game. I am talking about BG's/PvP/Duels here, as I have to admit I have little intereset in PvE. We'd have to modify my proposal here to respect the PvE-players desires too of course. Also, create a dedicated 1v1-arena with an ELO-ranking system where the (now classless) players can truly compete on equal terms. Your normal stats don't matter in the arena. Leave a few variables to still make the game interesting. I suggest that choosing which weapons/skills to slot is enough. These 50 abilities would have to be monitored extremely closely. )