The whole import-process (from a vb 4.2) took about 24 hours! First I thought I made something wrong and asked a friended webmaster and he told me that his import took almost the same amount of time.
The import of paid subscriptions failed completly (later more about it).
The importer offers to either continue with a stopped import (nice feature) or to start a new import. But if I choose this option, I expect that the importer cleans the database, but I dont expect a simple note that this option will add the things again to the database.
After installing a different style it looks pretty nice. Only the statusicons are a bit small and I wanted them bigger. Asking the developer of the style I got the answer that it is impossible, because the board uses sprites and not single graphics.
As the import of paid subscriptions failed, I had to add them manually. But I am not interessted in adding 250 users manually. Unfortunatly the importer grabbed the users and put them in their current (paid) usergroup.
Changing group-colors, adding rank-images and choose them in case of a user has two or more usergroups is also a matter of massive template changes. (I wonder what will happen if the next update is avaible?)
Trophys are also a thing by itself. The import was done into a fresh install of the software, without any changes. After the import the users got a bunch of trophys. So I changed the way of awarding a trophy (based on posts or on amount of likes). After logging out and logging in again, all users still had the same trophys like before. After updating all caches and two hours later, I logged out and in again and nothing changed.
The software has alot of potenial, no question, but the actual version is far away from beeing close to vb4.2 in case of features and handling. So at the moment I stopped the project of running my board with xenforo. Maybe the version XF1.7 or 2.0 will be more usefull. I will keep on eye on it.