If I bought this clock radio, it is above all because I needed an alarm clock that has a progressive volume ringing to say goodbye to my trouble waking up. So I headed to this model because it proposes increasing volume, it is very cheap and is quality. No luck for me, he did not actually escalating volume. Indeed, the volume is progressive in buzzer mode and no radio. However, apart from this, nothing to report. For my part, I have no problem with the buttons, it is sober and class at a time and works perfectly. Finally, I'll add another small problem I just remembered me, he does not offer battery backup in case of power failure.