Royal Kikusui China Appraisal

 Someone else had posted this same exact set  here -http://www.instappraisal.com/content/royal-kikusui-china-appraisal 

but I didn't see anyone do an actual appraisal.  My set looks exactly the same, I have service for 12 and it's only missing a single tea cup.  The rest is intact with extra serving pieces (gravy boat, sugar/creamer, covered bowl, oval platters (large and small) serving bowls.  

I've had it sitting in a cabinet for the last 15 years afraid to use it.  I know my grandmother did, but that was before people were cautioned about lead paint etc.  Can someone tell me what kind of brand or quality this set is, is it okay to use, is it dishwasher safe etc?  Anything anyone could tell me about it would be greatly appreciated.

I have it marked below as "no, I don't want to sell it" but it may depend on if it's worth anything and then I'd have to consult family members.