First of: the Logitech station is really pretty, I have a white-purple bedroom and as a version that is in purple of course really good clean. The sound is also good, of course, that's not a system for hi-fi experts, but I want so yes sonication no theater, but simply better sound than from the iPhone speakers. And I find the sound really good, not tinny or croaking, but completely okay.
The alarm I do not use, I let me wake from iPhone alarm.
I own an iPhone 4 and had the connection to be never had problems, the phone was ever charged. Until now ...
Unfortunately, I had to start over again sporadically the problem that the station just off and the music stops. Do not care if I heard my silent film music (soundtrack) to sleep or even during the renovations on full blast Metallica ... sometimes in just 5 minutes, sometimes after 3 hours, completely random.
I like a madman googled if I make a mistake and tried everything possible - reset the device, volume encouragingly iPhone completely upshift, no more music with quiet passages, other brackets (4 pieces are) checked power supply, batteries etc. purely etc.
Nix, really nothing at all has brought something, though the station silenced easily. And lately, unfortunately, more often than at the beginning.
For a few weeks (they now possess good 1.5 years) hears it also suddenly to load on the iPhone. I put the phone evening, hear my falling asleep (which unintentionally automatically turns off, in fact almost practical; D) and the next day the iPhone battery is still not fully charged (which it has always been otherwise).
I have it with my old 3GS tested because it is the same ... at some point, no idea when that station simply ceases to load, just as they simply shut down when the music playback.
I found none of the problems, despite intensive research, a solution, so the dock is now unfortunately left me (and I really have been patient so !!) and I'll look around for alternatives. Too bad, but next time it will be more of a different brand ...