I only had one Duratime, as they are not among all times most common watches. If i remember right then it had some standard module and was working allright, never had any problems with it. I sold it some time ago along with dozens of other watches to thin out my collection. It really wasnt a bad watch, it just didnt match my idea of "unique designs i must collect".
For Quality i can barely do more then guessing, as i only had one for a limited period of time and maybe did wear it like 2 or 3 times. I'd estimate these as "good standard", definitely being among the affordable digital watches back then, but "average" must not mean bad. If you can live with the fact that it doesnt read "Omega", "Tiffany" or "Pulsar" on the watch, then you may have found a good companion that could last many more years.