I found the new stress system to be pretty frustrating, I'm glad to see you are receptive to feedback on this front. Most of my negative feelings are from the religious part of the stress system. I'll go into more detail on what exactly I mean and why I feel that way.
The problem starts with temples. Temples where all deities are worshiped never seem to be able to keep up with my dwarfs needs, regardless of how big the temple is or how many statues i place in it. It should also be noted in-game that temples require statues to function. Maybe a count of religious statues within a location the same way instruments and boxes are counted?
The next problem I encountered was when specifing a statue's specific image in the shape of a deity, I would often not receive a statue in the specific image of that deity; instead, it will be carved in the image of a historical figure embracing the god or some other crap, which makes creating multiple statues to multiple gods a real pain. In the end, I have resorted to specifying the material as well as the image so every god has a unique material for their statues and only carving out temples 2 or 3 at a time, or else the list quickly becomes an unreadable mess. Requiring THAT much micromanagement just to build the essential furniture for a essential location isn't fun.
Next is the size of the pantheon. The longer world history goes and the larger the map, the more likely some dwarfs are to start worshiping deities from outside their civilization. It also means more items created to glorify the deities, which also in turn can be worshiped. For one example, the fort I'm currently playing is in year 106, a small world. My 99 dwarves worship 33 different gods. I've seen dwarfs worship as many as 5 different gods. It's basically impossible for anyone but the most skilled players to keep up with the many deities and objects your dwarfs worship.
For my final complaint about temples, lets say you make a few temples. The value of the temples seems to have no effect on the stress reduction or anything else, it produces no goods, trains no skills, and attracts no visitors. The only tangible benefit is fulfilling the prayer need. Compared to a libraries, guildhalls, or taverns, temples have the least amount of player interaction and almost no effect on the game; yet with every dwarf worshiping at least 1 deity, I still find myself making many temples. At a minimum temples should be comparable to the other locations. There should be a benefit to having a higher value temple to reward the players who choose to go the extra mile and boost the shrines value up to a temple complex. Temples should also have unique visitors, like libraries have scholars or taverns with traveling bards, that can give you benefits.