RCBS: Yes! I have used the customer service on two occasions. They have been superb. RCBS gets my business before any other suppliers.
I bought an RCBS Model 90 scale when electronic scales first appeared on the market. I still use it and it has never needed calibration. I regularly verify it with a check weight set. It's spot on; not even off by a tenth of a grain. I have complete confidence in it and haven't used a beam scale for years. With that said, I constantly hear of negative experiences with the current crop of electronic scales. As in this thread's earlier comments, a lot of people just don't trust them. Folks often promote beam scales after buying a cheap electronic scale. I can sure understand that. . . .
One of my pals is, like me, is an anal-retentive obsessive-compulsive engineer (grin). We are experienced in using precision electronic equipment and know how to judge performance/reliability. The pal just got into reloading and was disgusted with the electronic scale that came in his kit. Valuing his fingers and eyes, he went to a beam scale; an RCBS. After that experience, he now has no use for electronic scales. I believe this duplicates others' experiences.
All-in-all, I think cheap electronic scales have given the entire electronic scale segment a black eye. Beam scales are so simple, they can be inexpensive and still work well. Electronic scales - no so, IMHO. To get a reliable electronic scale, you'll need to fork over some cash. If you get a good electronic scale, I bet you'll never go back to a beam scale.