I have a Tanita digital scale with body fat percentage...I bought it after using a WW official scale at meetings and after visiting my doctor and using the scale in the drs office...the three seemed to agree pretty well, so I take that mean my new Tanita is fairly accurate. With digital, I agree that multiple readings are a good idea...it never hurts to double-check these things!
I like the body fat percentage on mine...I had my % professionally measured at the university I went to, and it is fairly close to the measurement on my scale...and my % has stayed the same from day to day (which, I don't like because it means I still have WAY to much body fat, but I haven't lost much weight lately either so it makes sense that it would stay close to the same). But, it does matter what time of day you weigh/measure body fat, how much hydration your body has had, etc. That's why I do measurements throughout the week, at different times...these are all unofficial measurements, of course. My official weigh-in day is Thursday before 7am. But I take lots of unofficial measurements throughout the week, just to learn about my body's patterns and see how different things affect my weight.