Not 100% Reliable – A few issues, the first was losing time during power outs after installing a fresh set of batteries. The time lost on resumption of normal power was only a fraction of the time of the blackout, but noticeable. The batteries were changed, still the same issue after a blackout. The second was with the controls in setting the time and date, initially the mode or date/set button did not respond in every instance. Since then, they seem to work as advertised. The third is one of the LED lights has ceased to function after around two years of operation. Fortunately, the missing bar in the attached image is from the "3". These things do happen over time, of course, for such a product it's more likely to occur after ten years at least. The operation of the controls on the unit can be finicky, for example pressing the snooze button even when the alarm has never been set initiates an 9 minute eternal snooze loop which can't be cancelled unless the mode button is reset. Pressing certain buttons "out of sequence" can also result in the flashing of undecipherable error codes. Haven't tried the charging facility yet, will post back if any issues. Otherwise, the Liquid Ears (that logo nowhere on product - model number is LEFMW) is a pretty nice unit.