Ken helped me with the migration of a very old phpbb 2.0 board to the newest xenforo. All categories, members, avatars and text were imported just like I wanted it. We had a few problems along the way and he solved them all! I can recommend you for migrations and to work with.
1. Will users keep their usernames and passwords after migration?
2. Can you build some kind of staging where I can test migrated forum before going to production?
3. Will the forum keep all attachements after migration
4. What things can be lost after migration?
5. Can you give me an estimated quote for the job?
I'm having issues converting IP4 to XF 2. The XF2 converter will not work with the suggestions I have found so far. I tried converting to 1.5 but during the process much of my forum threads do not covert over. Do you have any suggestions that can help me complete this process? Thanks!