I have Nero 9, which comes with Nero Vision for editing, coding etc, and Nero Showtime for playback of AVCHD files natively
Nero Vision can output the files to virtually any format you want
It is easy to use, and I don't have any problems with it
The whole suite has all the programs listed below
Burning ROM (Burning CD, DVD, BluRay)
Vision (Edit, compile, recode video)
Showtime (Play virtually all video/audio files)
CoverDesigner (Create covers for cases and discs)
PhotoSnap (View, edit photos, pictures)
Recode (similar to DVD Shrink)
SoundTrax (Mixing audio)
Wave Editor (Edit, record audio files)
Rescue Agent (Recover lost files)
Live (similar to Windows Media Centre)
Nero full list here