I haven't had my Premiere "crash" in a very long time. They fixed that a few updates ago. It is quite rock solid. Still slow (nowhere near as slow as when it was first released) but very usable most of the time.
The big problem with the Premiere 4 is that it has no OTA support at all. And yes, some people (like myself) use BOTH OTA and cable. OTA offers much better pictures (bitrates) than cable does.
Series 1-> Series 2-> DirecTiVo HD-> TiVo HD-> Premiere -> Roamio Pro