Tagging them here @SofaKingTuned
I wouldn't say "Buyer Beware" just yet, many positive reviews with the tuning and company. Let them chime in and see what they have to say.
Welcome Vince, you're not alone. Many reports here of the same thing.. I would recommend looking at a few threads in this section:
https://www.ecodieselram.com/forum/threads/unhappy-with-performance-after-emissions-recall-update.2979/
Diesels turn oil black in an instant. Between the EGR and other emissions it's just how they are. Nothing to worry about really, as long as they changed the oil.
Welcome! DIY as it will save you a ton of money.. just make sure you keep your receipts for the oil and filter for maintenance records.
This thread should help: https://www.ecodieselram.com/forum/threads/ram-ecodiesel-oil-change-information.318/