Love mine and have worn them many times. I just added the Magic wrap and It All Started with a Mouse to my collection! I have not any problem with tarnishing.
I bought one, silver DVC logo and am so glad I only bought one. It seems to scratch and ding up so easily. I still wear it together with Pandora style bracelet and wide bangle but I don't think I will get any more.
We just booked a last minute trip for January, we are going to let the kids open their bands on Christmas morning. So going to get a few of these for the DW. I started her on the Alex and Ani collection, did not know they had Disney stuff!!!!