Sounds like you got the same Sony ICD recorder I did, by any chance from the Sony outlet store at Woodbury Commons? Paid $30 for that one, and it has much less storage than this ICD-67.
It's been as reliable as a rock, and has never lost data or crashed, something I can't say about my old Uvex recorder, which is reliable only in the sense that it regularly lost all the messages when locking up from a low battery condition.
Got an Olympus VN-180 for the same price, but it's bigger and doesn't have the ability to break up messages the way the Sony did, and the LP mode sound quality is not as good as on the Sony.
It does have a good VOX implementation though, and a input jack for an external microphone, which I don't think the Sony offers. The Sony site doesn't seem to provide much in the way of details, such as what the record time in SP mode is or if it has date time stamping on the messages.
It's also nice that the Sony runs off a single AAA battery too, and it lasts a long time on it. Fast and slow playback speeds is good too.