From what little I know:
- Wild Child is primarily an e-publisher.
- Wild Child's erotica imprint is Freya's Bower.
- With e-presses, erotica is usually the best-selling genre.
- Veinglory's EREC site lists average first-month sales for erotica e-publishers and shows Ellora's Cave at 776 copies, Samhain at 275 copies, Changeling at 155 copies, and Freya's Bower at 9 copies.
Connecting the dots, then, a best-selling Wild Child book will do about 1/100 as well as an Ellora's Cave book. While they are no doubt a legitimate publisher (that is, the're not a scam) I don't think they're in the same league as EC and Samhain.