Feedback on Creatio 8

I spent a couple of days looking at Creatio 8.  It's undoubtedly the way forward, however a few issues:

1. With Creatio 7 it is possible to display a field on a Section form page with the value of a column from a linked object using a business rule, when the rule is triggered the field immediately updates.  With Creatio 8 it is possible to link a field to a column in another object however it does not update immediately, I had to save the record, close and reopen it to see the correct value of the linked column in the field.
2. It's not possible to display a column with values of a column from a linked object in a Creatio 8 Section list.
3. The List component is undoubtedly the way forward, however it is not possible as far as I can see to display the values of Lookup columns in the List component, or columns of values of columns linked to in other objects.
4. Is it possible to create a calculated field any more (i.e., as was possible with a business rule)?
5. A few instances of the Save button simply not responding, frustrating because of the lack of information on what the problem is.

Having said the above IMHO Creatio 8 is still undoubtedly the way forward, the UI is definitely more standard for this type of database application and less idiosyncratic than Creatio 7.  There are some useful minor improvements in Creatio 8 also, e.g., setting a flag to disable new records being added to a Lookup.  I am however I have to admit still developing with Creatio 7.