Your experiences from upgrading TS501SP1 to TS552?

System

Hi all.
We're starting to mentally prepare for the migration to TS552, and as always I'm curious to get som real life comments, not the ordinary 'it's never been easier' comments from the supplier....

So, anyone who's been in TS, TST, OD and DD 501 and compatible versions and successfully upgraded to TS552 and corresponding versions of the other products: What's your experience, any hints how to best do it, how much IW consulting did you use, how long did it take etc etc..

Many thanks for helping out, your input is valuable to us!!
Hakan

Hakan