Personally the biggest problem I have with Samsung handsets at the moment is them apparently cramming their unlocked handsets with apps that I have no interest in - especially since they seem for the most part aimed at German users (presumably when I bought my handset from Expansys it came from there - it was labeled as the European version but with a UK plug if memory serves).
The problem is these apps get re-installed with each update, even if I had previously uninstalled them. Add to this the broad nature of the permissions* coupled with the lack of any opportunity to not install them beyond refusing the update and I end up with the sort of situation I try to avoid by not buying operator provided handsets.
Oh well...
(*) One of the apps for example has the following assigned to it: PRECISE LOCATION (GPS AND NETWORK-BASED), FULL NETWORK ACCESS, READ YOUR CONTACTS, READ PHONE, STATUS AND IDENTITY, VIEW NETWORK CONNECTIONS, VIEW WI-FI CONNECTIONS, RECEIVE DATA FROM INTERNET, READ CALL LOG - and also starts automatically when the handset is switched on and can modify USB storage.