After playing the new region for a few hours, I think it's great to have more land and places to put buildings we have stored. I think it will be fun and a positive addition to the game.
Some constructive feedback for improvement:
1. I think we need an easier way to unlock more storage OR have storage be separate per region.
5000 population and 5000 of the region currency (more on that below) is a bit steep for unlocking a new regional city storage - we almost need that right away upon opening up the region. And that's not enough.
2. The regional currency is hard to earn. Upon creating regional residential zones, everyone moved out before I had enough regional currency to build the regional building - street food stall (limestone cliffs region). It required 300 of the lime simoleons, but I didn't earn that many lime simoleons from the new residents moving in. It would be nice if there was a way to get lime simeleons taxed in the new region. And, selling items from the regional factories in the global trade HQ would be ideal if they give currency for that region. It seems like the only way to earn regional currency right now is by upgrading buildings or from selling to the sims that pop up within that region.
3. The price markup for services I think should be reset in the new region - particularly maxis manor. I am finding the new region is mostly costing me money without a way to earn it back.
4. Daily bonus chest should not give me region items for a region I do not have unlocked. They aren't useful to me.
5. It would be VERY helpful to have more than 1 new factory in the region. 1 Mulberry Grove is hard to micro manage. Can more unlock upon population increase?