I did it for private use only!
Mir were the restrictions on WP8 known, but the benefits have outweighed.
After 4 weeks, Lumia 925 with WP8:
The positives:
# Very good workmanship and appearance-quality - pleasant weight
# Global navigation free
# Price below 400
# Whatsapp without problems
# Link all email access with simple Syncro
# Battery for at least 24 hours at full load
# Fast OS
# Sufficiently Apps - I lack only a mfg app ...
# Camera - great pictures
# Very good reception and voice quality
The negatives:
# The sound controls are very limited (I'm waiting for the next update)
# Here in the Maps app Satelittenbilder are worse than in normal browser version
# Partially limited extent in the apps - is improving but every week ...
Clear recommendation for jmd who needs no special apps.